Balance Tests of Imai's propensity score model and alternatives to that model . ****IMAI's MODEL . do "C:\DOCUME~1\KEVINA~1\LOCALS~1\Temp\STD0g0000.tmp" . vratio persons phnc1 if match==1 Variance Ratio Test F[246,1234] = 1.0019995 . vratio vote961 phnc1 if match==1 Variance Ratio Test F[1234,246] = 1.0164001 . vratio new phnc1 if match==1 Variance Ratio Test F[246,1234] = 1.003252 . vratio majorpty phnc1 if match==1 Variance Ratio Test F[1234,246] = 1.0650008 . vratio age phnc1 if match==1 Variance Ratio Test F[246,1234] = 1.0005271 . vratio pXv phnc1 if match==1 Variance Ratio Test F[246,1234] = 1.007495 . vratio pXn phnc1 if match==1 Variance Ratio Test F[1234,246] = 1.0623887 . vratio pXm phnc1 if match==1 Variance Ratio Test F[1234,246] = 1.0163432 . vratio pXa phnc1 if match==1 Variance Ratio Test F[1234,246] = 1.0259232 . vratio vXn phnc1 if match==1 Variance Ratio Test F[246,1234] = . . vratio vXm phnc1 if match==1 Variance Ratio Test F[1234,246] = 1.0130192 . vratio vXa phnc1 if match==1 Variance Ratio Test F[246,1234] = 1.0049656 . vratio nXm phnc1 if match==1 Variance Ratio Test F[1234,246] = 1.0778516 . vratio nXa phnc1 if match==1 Variance Ratio Test F[1234,246] = 1.4874656 . vratio mXa phnc1 if match==1 Variance Ratio Test F[1234,246] = 1.0323443 . vratio p2 phnc1 if match==1 Variance Ratio Test F[246,1234] = 1.0019995 . vratio v2 phnc1 if match==1 Variance Ratio Test F[1234,246] = 1.0164001 . vratio n2 phnc1 if match==1 Variance Ratio Test F[246,1234] = 1.003252 . vratio m2 phnc1 if match==1 Variance Ratio Test F[1234,246] = 1.0650008 . vratio age2 phnc1 if match==1 Variance Ratio Test F[1234,246] = 1.0435083 . . ttest persons if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 1.504453 .014233 .5001827 1.47653 1.532377 1 | 247 1.518219 .0318577 .5006825 1.45547 1.580967 ---------+-------------------------------------------------------------------- combined | 1482 1.506748 .0129913 .5001232 1.481264 1.532231 ---------+-------------------------------------------------------------------- diff | -.0137652 .0348693 -.0821636 .0546333 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.3948 t = -0.3948 t = -0.3948 P < t = 0.3465 P > |t| = 0.6931 P > t = 0.6535 . ttest vote961 if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .702834 .0130097 .4571954 .6773104 .7283576 1 | 247 .7125506 .028855 .4534918 .6557162 .769385 ---------+-------------------------------------------------------------------- combined | 1482 .7044534 .0118566 .4564421 .6811959 .727711 ---------+-------------------------------------------------------------------- diff | -.0097166 .0318244 -.0721424 .0527092 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.3053 t = -0.3053 t = -0.3053 P < t = 0.3801 P > |t| = 0.7602 P > t = 0.6199 . ttest new if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .1133603 .009025 .3171612 .0956543 .1310663 1 | 247 .1133603 .0202133 .3176765 .0735472 .1531735 ---------+-------------------------------------------------------------------- combined | 1482 .1133603 .0082381 .3171398 .0972008 .1295199 ---------+-------------------------------------------------------------------- diff | 0 .0221126 -.0433753 .0433753 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.0000 t = 0.0000 t = 0.0000 P < t = 0.5000 P > |t| = 1.0000 P > t = 0.5000 . ttest majorpty if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .782996 .0117343 .4123724 .7599746 .8060173 1 | 247 .8016194 .0254253 .39959 .7515404 .8516985 ---------+-------------------------------------------------------------------- combined | 1482 .7860999 .0106553 .4101956 .7651987 .807001 ---------+-------------------------------------------------------------------- diff | -.0186235 .0285968 -.0747181 .0374711 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.6512 t = -0.6512 t = -0.6512 P < t = 0.2575 P > |t| = 0.5150 P > t = 0.7425 . ttest age if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 58.49636 .5646381 19.84283 57.3886 59.60411 1 | 247 58.30769 1.262902 19.84806 55.82021 60.79517 ---------+-------------------------------------------------------------------- combined | 1482 58.46491 .5152935 19.83713 57.45413 59.4757 ---------+-------------------------------------------------------------------- diff | .188664 1.383136 -2.524451 2.901779 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.1364 t = 0.1364 t = 0.1364 P < t = 0.5542 P > |t| = 0.8915 P > t = 0.4458 . ttest pXv if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 1.111741 .0237079 .833156 1.065229 1.158253 1 | 247 1.1417 .0532107 .8362724 1.036894 1.246507 ---------+-------------------------------------------------------------------- combined | 1482 1.116734 .0216503 .8334681 1.074266 1.159203 ---------+-------------------------------------------------------------------- diff | -.0299595 .0581084 -.1439431 .084024 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.5156 t = -0.5156 t = -0.5156 P < t = 0.3031 P > |t| = 0.6062 P > t = 0.6969 . ttest pXn if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .1417004 .0120204 .4224288 .1181177 .1652831 1 | 247 .1376518 .0260773 .4098376 .0862885 .1890152 ---------+-------------------------------------------------------------------- combined | 1482 .1410256 .0109158 .4202228 .1196136 .1624377 ---------+-------------------------------------------------------------------- diff | .0040486 .0292999 -.0534251 .0615223 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.1382 t = 0.1382 t = 0.1382 P < t = 0.5549 P > |t| = 0.8901 P > t = 0.4451 . ttest pXm if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 1.186235 .0217835 .7655286 1.143498 1.228972 1 | 247 1.230769 .0483162 .7593487 1.135603 1.325935 ---------+-------------------------------------------------------------------- combined | 1482 1.193657 .0198569 .764427 1.154707 1.232608 ---------+-------------------------------------------------------------------- diff | -.0445344 .0532871 -.1490608 .0599919 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.8357 t = -0.8357 t = -0.8357 P < t = 0.2017 P > |t| = 0.4034 P > t = 0.7983 . ttest pXa if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 88.2332 1.197549 42.08495 85.88374 90.58266 1 | 247 88.41296 2.643753 41.54985 83.20568 93.62024 ---------+-------------------------------------------------------------------- combined | 1482 88.26316 1.090543 41.98236 86.12399 90.40233 ---------+-------------------------------------------------------------------- diff | -.1797571 2.927218 -5.921695 5.56218 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.0614 t = -0.0614 t = -0.0614 P < t = 0.4755 P > |t| = 0.9510 P > t = 0.5245 . ttest vXn if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 0 0 0 0 0 1 | 247 0 0 0 0 0 ---------+-------------------------------------------------------------------- combined | 1482 0 0 0 0 0 ---------+-------------------------------------------------------------------- diff | 0 0 0 0 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = . t = . t = . P < t = . P > |t| = . P > t = . . ttest vXm if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .5659919 .014109 .4958267 .5383116 .5936722 1 | 247 .5910931 .0313453 .4926303 .5293537 .6528325 ---------+-------------------------------------------------------------------- combined | 1482 .5701754 .0128639 .495218 .5449421 .5954088 ---------+-------------------------------------------------------------------- diff | -.0251012 .0345229 -.0928203 .0426179 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.7271 t = -0.7271 t = -0.7271 P < t = 0.2336 P > |t| = 0.4673 P > t = 0.7664 . ttest vXa if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 43.63482 .9132104 32.09256 41.8432 45.42643 1 | 247 44.75709 2.047064 32.17214 40.72508 48.78909 ---------+-------------------------------------------------------------------- combined | 1482 43.82186 .8337764 32.09768 42.18635 45.45737 ---------+-------------------------------------------------------------------- diff | -1.122267 2.237822 -5.511908 3.267374 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.5015 t = -0.5015 t = -0.5015 P < t = 0.3080 P > |t| = 0.6161 P > t = 0.6920 . ttest nXm if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .0882591 .0080753 .2837863 .0724163 .1041019 1 | 247 .0809717 .0173926 .2733455 .0467143 .115229 ---------+-------------------------------------------------------------------- combined | 1482 .0870445 .0073252 .2819955 .0726757 .1014134 ---------+-------------------------------------------------------------------- diff | .0072874 .0196612 -.0312794 .0458543 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.3707 t = 0.3707 t = 0.3707 P < t = 0.6445 P > |t| = 0.7110 P > t = 0.3555 . ttest nXa if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 4.923077 .4301342 15.11602 4.079202 5.766952 1 | 247 4.02834 .7886159 12.39407 2.47504 5.581641 ---------+-------------------------------------------------------------------- combined | 1482 4.773954 .3817824 14.69738 4.025062 5.522846 ---------+-------------------------------------------------------------------- diff | .8947368 1.024512 -1.114913 2.904386 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.8733 t = 0.8733 t = 0.8733 P < t = 0.8087 P > |t| = 0.3826 P > t = 0.1913 . ttest mXa if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 46.617 .8512771 29.91606 44.94689 48.28711 1 | 247 48.02024 1.873457 29.44368 44.33018 51.7103 ---------+-------------------------------------------------------------------- combined | 1482 46.85088 .7749374 29.83257 45.33079 48.37097 ---------+-------------------------------------------------------------------- diff | -1.403239 2.079758 -5.482825 2.676348 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.6747 t = -0.6747 t = -0.6747 P < t = 0.2500 P > |t| = 0.5000 P > t = 0.7500 . ttest p2 if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 2.51336 .0426989 1.500548 2.42959 2.597131 1 | 247 2.554656 .095573 1.502048 2.36641 2.742902 ---------+-------------------------------------------------------------------- combined | 1482 2.520243 .0389739 1.50037 2.443793 2.596693 ---------+-------------------------------------------------------------------- diff | -.0412955 .1046078 -.2464909 .1638999 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.3948 t = -0.3948 t = -0.3948 P < t = 0.3465 P > |t| = 0.6931 P > t = 0.6535 . ttest v2 if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .702834 .0130097 .4571954 .6773104 .7283576 1 | 247 .7125506 .028855 .4534918 .6557162 .769385 ---------+-------------------------------------------------------------------- combined | 1482 .7044534 .0118566 .4564421 .6811959 .727711 ---------+-------------------------------------------------------------------- diff | -.0097166 .0318244 -.0721424 .0527092 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.3053 t = -0.3053 t = -0.3053 P < t = 0.3801 P > |t| = 0.7602 P > t = 0.6199 . ttest n2 if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .1133603 .009025 .3171612 .0956543 .1310663 1 | 247 .1133603 .0202133 .3176765 .0735472 .1531735 ---------+-------------------------------------------------------------------- combined | 1482 .1133603 .0082381 .3171398 .0972008 .1295199 ---------+-------------------------------------------------------------------- diff | 0 .0221126 -.0433753 .0433753 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.0000 t = 0.0000 t = 0.0000 P < t = 0.5000 P > |t| = 1.0000 P > t = 0.5000 . ttest m2 if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .782996 .0117343 .4123724 .7599746 .8060173 1 | 247 .8016194 .0254253 .39959 .7515404 .8516985 ---------+-------------------------------------------------------------------- combined | 1482 .7860999 .0106553 .4101956 .7651987 .807001 ---------+-------------------------------------------------------------------- diff | -.0186235 .0285968 -.0747181 .0374711 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.6512 t = -0.6512 t = -0.6512 P < t = 0.2575 P > |t| = 0.5150 P > t = 0.7425 . ttest age2 if match==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 38.15243 .652659 22.93611 36.87199 39.43287 1 | 247 37.92138 1.428642 22.45287 35.10745 40.73531 ---------+-------------------------------------------------------------------- combined | 1482 38.11392 .593529 22.84894 36.94967 39.27817 ---------+-------------------------------------------------------------------- diff | .2310526 1.593132 -2.893985 3.35609 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.1450 t = 0.1450 t = 0.1450 P < t = 0.5576 P > |t| = 0.8847 P > t = 0.4424 . . end of do-file . ***LINEAR MODEL . do "C:\DOCUME~1\KEVINA~1\LOCALS~1\Temp\STD0g0000.tmp" . vratio persons phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0045341 . vratio vote961 phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0015721 . vratio new phnc1 if match_pars==1 Variance Ratio Test F[1234,246] = 1.0276431 . vratio majorpty phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.052731 . vratio age phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0438762 . vratio pXv phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0712833 . vratio pXn phnc1 if match_pars==1 Variance Ratio Test F[1234,246] = 1.261756 . vratio pXm phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0790796 . vratio pXa phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0590827 . vratio vXn phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = . . vratio vXm phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0026428 . vratio vXa phnc1 if match_pars==1 Variance Ratio Test F[1234,246] = 1.0020247 . vratio nXm phnc1 if match_pars==1 Variance Ratio Test F[1234,246] = 1.14874 . vratio nXa phnc1 if match_pars==1 Variance Ratio Test F[1234,246] = 1.4188446 . vratio mXa phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0288564 . vratio p2 phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0045341 . vratio v2 phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0015721 . vratio n2 phnc1 if match_pars==1 Variance Ratio Test F[1234,246] = 1.0276431 . vratio m2 phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.052731 . vratio age2 phnc1 if match_pars==1 Variance Ratio Test F[1234,246] = 1.0243417 . . ttest persons if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 1.474494 .014215 .4995513 1.446606 1.502382 1 | 247 1.518219 .0318577 .5006825 1.45547 1.580967 ---------+-------------------------------------------------------------------- combined | 1482 1.481781 .0129839 .4998366 1.456313 1.50725 ---------+-------------------------------------------------------------------- diff | -.0437247 .0348326 -.1120512 .0246018 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -1.2553 t = -1.2553 t = -1.2553 P < t = 0.1048 P > |t| = 0.2096 P > t = 0.8952 . ttest vote961 if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .7117409 .0128942 .4531358 .6864439 .7370379 1 | 247 .7125506 .028855 .4534918 .6557162 .769385 ---------+-------------------------------------------------------------------- combined | 1482 .7118758 .0117683 .4530421 .6887915 .7349602 ---------+-------------------------------------------------------------------- diff | -.0008097 .0315884 -.0627725 .061153 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.0256 t = -0.0256 t = -0.0256 P < t = 0.4898 P > |t| = 0.9796 P > t = 0.5102 . ttest new if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .1174089 .0091637 .3220373 .0994307 .1353871 1 | 247 .1133603 .0202133 .3176765 .0735472 .1531735 ---------+-------------------------------------------------------------------- combined | 1482 .1167341 .0083439 .3212116 .1003671 .1331012 ---------+-------------------------------------------------------------------- diff | .0040486 .0223962 -.0398832 .0479803 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.1808 t = 0.1808 t = 0.1808 P < t = 0.5717 P > |t| = 0.8566 P > t = 0.4283 . ttest majorpty if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .8137652 .0110821 .3894538 .7920233 .835507 1 | 247 .8016194 .0254253 .39959 .7515404 .8516985 ---------+-------------------------------------------------------------------- combined | 1482 .8117409 .010158 .3910509 .7918152 .8316665 ---------+-------------------------------------------------------------------- diff | .0121457 .0272642 -.0413349 .0656264 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.4455 t = 0.4455 t = 0.4455 P < t = 0.6720 P > |t| = 0.6560 P > t = 0.3280 . ttest age if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 59.43725 .55279 19.42646 58.35273 60.52176 1 | 247 58.30769 1.262902 19.84806 55.82021 60.79517 ---------+-------------------------------------------------------------------- combined | 1482 59.24899 .5064098 19.49513 58.25563 60.24234 ---------+-------------------------------------------------------------------- diff | 1.129555 1.358982 -1.536181 3.79529 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.8312 t = 0.8312 t = 0.8312 P < t = 0.7970 P > |t| = 0.4060 P > t = 0.2030 . ttest pXv if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 1.082591 .0229912 .8079707 1.037485 1.127697 1 | 247 1.1417 .0532107 .8362724 1.036894 1.246507 ---------+-------------------------------------------------------------------- combined | 1482 1.092443 .0211126 .8127675 1.051029 1.133856 ---------+-------------------------------------------------------------------- diff | -.0591093 .0566494 -.170231 .0520124 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -1.0434 t = -1.0434 t = -1.0434 P < t = 0.1485 P > |t| = 0.2969 P > t = 0.8515 . ttest pXn if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .157085 .0130998 .460362 .1313846 .1827854 1 | 247 .1376518 .0260773 .4098376 .0862885 .1890152 ---------+-------------------------------------------------------------------- combined | 1482 .1538462 .011748 .4522605 .1308016 .1768907 ---------+-------------------------------------------------------------------- diff | .0194332 .0315298 -.0424147 .0812811 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.6163 t = 0.6163 t = 0.6163 P < t = 0.7311 P > |t| = 0.5378 P > t = 0.2689 . ttest pXm if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 1.202429 .0208008 .7309951 1.16162 1.243238 1 | 247 1.230769 .0483162 .7593487 1.135603 1.325935 ---------+-------------------------------------------------------------------- combined | 1482 1.207152 .0191084 .7356111 1.16967 1.244635 ---------+-------------------------------------------------------------------- diff | -.0283401 .0512852 -.1289395 .0722594 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.5526 t = -0.5526 t = -0.5526 P < t = 0.2903 P > |t| = 0.5806 P > t = 0.7097 . ttest pXa if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 87.19109 1.14887 40.37425 84.93714 89.44505 1 | 247 88.41296 2.643753 41.54985 83.20568 93.62024 ---------+-------------------------------------------------------------------- combined | 1482 87.39474 1.053618 40.56087 85.32799 89.46148 ---------+-------------------------------------------------------------------- diff | -1.221862 2.82793 -6.76904 4.325316 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.4321 t = -0.4321 t = -0.4321 P < t = 0.3329 P > |t| = 0.6658 P > t = 0.6671 . ttest vXn if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 0 0 0 0 0 1 | 247 0 0 0 0 0 ---------+-------------------------------------------------------------------- combined | 1482 0 0 0 0 0 ---------+-------------------------------------------------------------------- diff | 0 0 0 0 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = . t = . t = . P < t = . P > |t| = . P > t = . . ttest vXm if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .5902834 .0139996 .4919806 .5628178 .617749 1 | 247 .5910931 .0313453 .4926303 .5293537 .6528325 ---------+-------------------------------------------------------------------- combined | 1482 .5904184 .0127783 .4919226 .5653529 .6154838 ---------+-------------------------------------------------------------------- diff | -.0008097 .0342993 -.0680902 .0664707 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.0236 t = -0.0236 t = -0.0236 P < t = 0.4906 P > |t| = 0.9812 P > t = 0.5094 . ttest vXa if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 44.76599 .9164012 32.20469 42.96812 46.56387 1 | 247 44.75709 2.047064 32.17214 40.72508 48.78909 ---------+-------------------------------------------------------------------- combined | 1482 44.76451 .8361331 32.18841 43.12438 46.40464 ---------+-------------------------------------------------------------------- diff | .0089069 2.244338 -4.393516 4.41133 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.0040 t = 0.0040 t = 0.0040 P < t = 0.5016 P > |t| = 0.9968 P > t = 0.4984 . ttest nXm if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .0947368 .0083366 .2929697 .0783814 .1110923 1 | 247 .0809717 .0173926 .2733455 .0467143 .115229 ---------+-------------------------------------------------------------------- combined | 1482 .0924426 .0075265 .2897476 .0776788 .1072065 ---------+-------------------------------------------------------------------- diff | .0137652 .0201995 -.0258575 .0533879 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.6815 t = 0.6815 t = 0.6815 P < t = 0.7522 P > |t| = 0.4957 P > t = 0.2478 . ttest nXa if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 4.998381 .4200954 14.76323 4.1742 5.822561 1 | 247 4.02834 .7886159 12.39407 2.47504 5.581641 ---------+-------------------------------------------------------------------- combined | 1482 4.836707 .3739578 14.39616 4.103164 5.57025 ---------+-------------------------------------------------------------------- diff | .9700405 1.003456 -.9983074 2.938388 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.9667 t = 0.9667 t = 0.9667 P < t = 0.8331 P > |t| = 0.3339 P > t = 0.1669 . ttest mXa if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 49.38947 .8260023 29.02784 47.76895 51.01 1 | 247 48.02024 1.873457 29.44368 44.33018 51.7103 ---------+-------------------------------------------------------------------- combined | 1482 49.16127 .7557008 29.09203 47.67891 50.64363 ---------+-------------------------------------------------------------------- diff | 1.369231 2.028131 -2.609086 5.347547 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.6751 t = 0.6751 t = 0.6751 P < t = 0.7501 P > |t| = 0.4997 P > t = 0.2499 . ttest p2 if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 2.423482 .042645 1.498654 2.339817 2.507146 1 | 247 2.554656 .095573 1.502048 2.36641 2.742902 ---------+-------------------------------------------------------------------- combined | 1482 2.445344 .0389516 1.49951 2.368938 2.52175 ---------+-------------------------------------------------------------------- diff | -.1311741 .1044978 -.3361536 .0738054 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -1.2553 t = -1.2553 t = -1.2553 P < t = 0.1048 P > |t| = 0.2096 P > t = 0.8952 . ttest v2 if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .7117409 .0128942 .4531358 .6864439 .7370379 1 | 247 .7125506 .028855 .4534918 .6557162 .769385 ---------+-------------------------------------------------------------------- combined | 1482 .7118758 .0117683 .4530421 .6887915 .7349602 ---------+-------------------------------------------------------------------- diff | -.0008097 .0315884 -.0627725 .061153 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.0256 t = -0.0256 t = -0.0256 P < t = 0.4898 P > |t| = 0.9796 P > t = 0.5102 . ttest n2 if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .1174089 .0091637 .3220373 .0994307 .1353871 1 | 247 .1133603 .0202133 .3176765 .0735472 .1531735 ---------+-------------------------------------------------------------------- combined | 1482 .1167341 .0083439 .3212116 .1003671 .1331012 ---------+-------------------------------------------------------------------- diff | .0040486 .0223962 -.0398832 .0479803 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.1808 t = 0.1808 t = 0.1808 P < t = 0.5717 P > |t| = 0.8566 P > t = 0.4283 . ttest m2 if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .8137652 .0110821 .3894538 .7920233 .835507 1 | 247 .8016194 .0254253 .39959 .7515404 .8516985 ---------+-------------------------------------------------------------------- combined | 1482 .8117409 .010158 .3910509 .7918152 .8316665 ---------+-------------------------------------------------------------------- diff | .0121457 .0272642 -.0413349 .0656264 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.4455 t = 0.4455 t = 0.4455 P < t = 0.6720 P > |t| = 0.6560 P > t = 0.3280 . ttest age2 if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 39.09868 .6466373 22.7245 37.83005 40.36731 1 | 247 37.92138 1.428642 22.45287 35.10745 40.73531 ---------+-------------------------------------------------------------------- combined | 1482 38.90246 .5890409 22.67616 37.74702 40.05791 ---------+-------------------------------------------------------------------- diff | 1.177304 1.5808 -1.923544 4.278151 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.7448 t = 0.7448 t = 0.7448 P < t = 0.7717 P > |t| = 0.4565 P > t = 0.2283 . . end of do-file . ***ALL INTERACTIONS AND HIGHER ORDER TERMS . do "C:\DOCUME~1\KEVINA~1\LOCALS~1\Temp\STD0g0000.tmp" . vratio persons phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0045341 . vratio vote961 phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0015721 . vratio new phnc1 if match_pars==1 Variance Ratio Test F[1234,246] = 1.0276431 . vratio majorpty phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.052731 . vratio age phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0438762 . vratio pXv phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0712833 . vratio pXn phnc1 if match_pars==1 Variance Ratio Test F[1234,246] = 1.261756 . vratio pXm phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0790796 . vratio pXa phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0590827 . vratio vXn phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = . . vratio vXm phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0026428 . vratio vXa phnc1 if match_pars==1 Variance Ratio Test F[1234,246] = 1.0020247 . vratio nXm phnc1 if match_pars==1 Variance Ratio Test F[1234,246] = 1.14874 . vratio nXa phnc1 if match_pars==1 Variance Ratio Test F[1234,246] = 1.4188446 . vratio mXa phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0288564 . vratio p2 phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0045341 . vratio v2 phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.0015721 . vratio n2 phnc1 if match_pars==1 Variance Ratio Test F[1234,246] = 1.0276431 . vratio m2 phnc1 if match_pars==1 Variance Ratio Test F[246,1234] = 1.052731 . vratio age2 phnc1 if match_pars==1 Variance Ratio Test F[1234,246] = 1.0243417 . . ttest persons if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 1.474494 .014215 .4995513 1.446606 1.502382 1 | 247 1.518219 .0318577 .5006825 1.45547 1.580967 ---------+-------------------------------------------------------------------- combined | 1482 1.481781 .0129839 .4998366 1.456313 1.50725 ---------+-------------------------------------------------------------------- diff | -.0437247 .0348326 -.1120512 .0246018 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -1.2553 t = -1.2553 t = -1.2553 P < t = 0.1048 P > |t| = 0.2096 P > t = 0.8952 . ttest vote961 if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .7117409 .0128942 .4531358 .6864439 .7370379 1 | 247 .7125506 .028855 .4534918 .6557162 .769385 ---------+-------------------------------------------------------------------- combined | 1482 .7118758 .0117683 .4530421 .6887915 .7349602 ---------+-------------------------------------------------------------------- diff | -.0008097 .0315884 -.0627725 .061153 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.0256 t = -0.0256 t = -0.0256 P < t = 0.4898 P > |t| = 0.9796 P > t = 0.5102 . ttest new if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .1174089 .0091637 .3220373 .0994307 .1353871 1 | 247 .1133603 .0202133 .3176765 .0735472 .1531735 ---------+-------------------------------------------------------------------- combined | 1482 .1167341 .0083439 .3212116 .1003671 .1331012 ---------+-------------------------------------------------------------------- diff | .0040486 .0223962 -.0398832 .0479803 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.1808 t = 0.1808 t = 0.1808 P < t = 0.5717 P > |t| = 0.8566 P > t = 0.4283 . ttest majorpty if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .8137652 .0110821 .3894538 .7920233 .835507 1 | 247 .8016194 .0254253 .39959 .7515404 .8516985 ---------+-------------------------------------------------------------------- combined | 1482 .8117409 .010158 .3910509 .7918152 .8316665 ---------+-------------------------------------------------------------------- diff | .0121457 .0272642 -.0413349 .0656264 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.4455 t = 0.4455 t = 0.4455 P < t = 0.6720 P > |t| = 0.6560 P > t = 0.3280 . ttest age if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 59.43725 .55279 19.42646 58.35273 60.52176 1 | 247 58.30769 1.262902 19.84806 55.82021 60.79517 ---------+-------------------------------------------------------------------- combined | 1482 59.24899 .5064098 19.49513 58.25563 60.24234 ---------+-------------------------------------------------------------------- diff | 1.129555 1.358982 -1.536181 3.79529 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.8312 t = 0.8312 t = 0.8312 P < t = 0.7970 P > |t| = 0.4060 P > t = 0.2030 . ttest pXv if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 1.082591 .0229912 .8079707 1.037485 1.127697 1 | 247 1.1417 .0532107 .8362724 1.036894 1.246507 ---------+-------------------------------------------------------------------- combined | 1482 1.092443 .0211126 .8127675 1.051029 1.133856 ---------+-------------------------------------------------------------------- diff | -.0591093 .0566494 -.170231 .0520124 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -1.0434 t = -1.0434 t = -1.0434 P < t = 0.1485 P > |t| = 0.2969 P > t = 0.8515 . ttest pXn if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .157085 .0130998 .460362 .1313846 .1827854 1 | 247 .1376518 .0260773 .4098376 .0862885 .1890152 ---------+-------------------------------------------------------------------- combined | 1482 .1538462 .011748 .4522605 .1308016 .1768907 ---------+-------------------------------------------------------------------- diff | .0194332 .0315298 -.0424147 .0812811 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.6163 t = 0.6163 t = 0.6163 P < t = 0.7311 P > |t| = 0.5378 P > t = 0.2689 . ttest pXm if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 1.202429 .0208008 .7309951 1.16162 1.243238 1 | 247 1.230769 .0483162 .7593487 1.135603 1.325935 ---------+-------------------------------------------------------------------- combined | 1482 1.207152 .0191084 .7356111 1.16967 1.244635 ---------+-------------------------------------------------------------------- diff | -.0283401 .0512852 -.1289395 .0722594 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.5526 t = -0.5526 t = -0.5526 P < t = 0.2903 P > |t| = 0.5806 P > t = 0.7097 . ttest pXa if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 87.19109 1.14887 40.37425 84.93714 89.44505 1 | 247 88.41296 2.643753 41.54985 83.20568 93.62024 ---------+-------------------------------------------------------------------- combined | 1482 87.39474 1.053618 40.56087 85.32799 89.46148 ---------+-------------------------------------------------------------------- diff | -1.221862 2.82793 -6.76904 4.325316 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.4321 t = -0.4321 t = -0.4321 P < t = 0.3329 P > |t| = 0.6658 P > t = 0.6671 . ttest vXn if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 0 0 0 0 0 1 | 247 0 0 0 0 0 ---------+-------------------------------------------------------------------- combined | 1482 0 0 0 0 0 ---------+-------------------------------------------------------------------- diff | 0 0 0 0 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = . t = . t = . P < t = . P > |t| = . P > t = . . ttest vXm if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .5902834 .0139996 .4919806 .5628178 .617749 1 | 247 .5910931 .0313453 .4926303 .5293537 .6528325 ---------+-------------------------------------------------------------------- combined | 1482 .5904184 .0127783 .4919226 .5653529 .6154838 ---------+-------------------------------------------------------------------- diff | -.0008097 .0342993 -.0680902 .0664707 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.0236 t = -0.0236 t = -0.0236 P < t = 0.4906 P > |t| = 0.9812 P > t = 0.5094 . ttest vXa if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 44.76599 .9164012 32.20469 42.96812 46.56387 1 | 247 44.75709 2.047064 32.17214 40.72508 48.78909 ---------+-------------------------------------------------------------------- combined | 1482 44.76451 .8361331 32.18841 43.12438 46.40464 ---------+-------------------------------------------------------------------- diff | .0089069 2.244338 -4.393516 4.41133 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.0040 t = 0.0040 t = 0.0040 P < t = 0.5016 P > |t| = 0.9968 P > t = 0.4984 . ttest nXm if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .0947368 .0083366 .2929697 .0783814 .1110923 1 | 247 .0809717 .0173926 .2733455 .0467143 .115229 ---------+-------------------------------------------------------------------- combined | 1482 .0924426 .0075265 .2897476 .0776788 .1072065 ---------+-------------------------------------------------------------------- diff | .0137652 .0201995 -.0258575 .0533879 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.6815 t = 0.6815 t = 0.6815 P < t = 0.7522 P > |t| = 0.4957 P > t = 0.2478 . ttest nXa if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 4.998381 .4200954 14.76323 4.1742 5.822561 1 | 247 4.02834 .7886159 12.39407 2.47504 5.581641 ---------+-------------------------------------------------------------------- combined | 1482 4.836707 .3739578 14.39616 4.103164 5.57025 ---------+-------------------------------------------------------------------- diff | .9700405 1.003456 -.9983074 2.938388 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.9667 t = 0.9667 t = 0.9667 P < t = 0.8331 P > |t| = 0.3339 P > t = 0.1669 . ttest mXa if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 49.38947 .8260023 29.02784 47.76895 51.01 1 | 247 48.02024 1.873457 29.44368 44.33018 51.7103 ---------+-------------------------------------------------------------------- combined | 1482 49.16127 .7557008 29.09203 47.67891 50.64363 ---------+-------------------------------------------------------------------- diff | 1.369231 2.028131 -2.609086 5.347547 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.6751 t = 0.6751 t = 0.6751 P < t = 0.7501 P > |t| = 0.4997 P > t = 0.2499 . ttest p2 if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 2.423482 .042645 1.498654 2.339817 2.507146 1 | 247 2.554656 .095573 1.502048 2.36641 2.742902 ---------+-------------------------------------------------------------------- combined | 1482 2.445344 .0389516 1.49951 2.368938 2.52175 ---------+-------------------------------------------------------------------- diff | -.1311741 .1044978 -.3361536 .0738054 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -1.2553 t = -1.2553 t = -1.2553 P < t = 0.1048 P > |t| = 0.2096 P > t = 0.8952 . ttest v2 if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .7117409 .0128942 .4531358 .6864439 .7370379 1 | 247 .7125506 .028855 .4534918 .6557162 .769385 ---------+-------------------------------------------------------------------- combined | 1482 .7118758 .0117683 .4530421 .6887915 .7349602 ---------+-------------------------------------------------------------------- diff | -.0008097 .0315884 -.0627725 .061153 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.0256 t = -0.0256 t = -0.0256 P < t = 0.4898 P > |t| = 0.9796 P > t = 0.5102 . ttest n2 if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .1174089 .0091637 .3220373 .0994307 .1353871 1 | 247 .1133603 .0202133 .3176765 .0735472 .1531735 ---------+-------------------------------------------------------------------- combined | 1482 .1167341 .0083439 .3212116 .1003671 .1331012 ---------+-------------------------------------------------------------------- diff | .0040486 .0223962 -.0398832 .0479803 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.1808 t = 0.1808 t = 0.1808 P < t = 0.5717 P > |t| = 0.8566 P > t = 0.4283 . ttest m2 if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .8137652 .0110821 .3894538 .7920233 .835507 1 | 247 .8016194 .0254253 .39959 .7515404 .8516985 ---------+-------------------------------------------------------------------- combined | 1482 .8117409 .010158 .3910509 .7918152 .8316665 ---------+-------------------------------------------------------------------- diff | .0121457 .0272642 -.0413349 .0656264 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.4455 t = 0.4455 t = 0.4455 P < t = 0.6720 P > |t| = 0.6560 P > t = 0.3280 . ttest age2 if match_pars==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 39.09868 .6466373 22.7245 37.83005 40.36731 1 | 247 37.92138 1.428642 22.45287 35.10745 40.73531 ---------+-------------------------------------------------------------------- combined | 1482 38.90246 .5890409 22.67616 37.74702 40.05791 ---------+-------------------------------------------------------------------- diff | 1.177304 1.5808 -1.923544 4.278151 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.7448 t = 0.7448 t = 0.7448 P < t = 0.7717 P > |t| = 0.4565 P > t = 0.2283 . . . ***NXA added to Imai's model . do "C:\DOCUME~1\KEVINA~1\LOCALS~1\Temp\STD0g0000.tmp" . vratio persons phnc1 if match_m4==1 Variance Ratio Test F[246,1234] = 1.0022098 . vratio vote961 phnc1 if match_m4==1 Variance Ratio Test F[246,1234] = 1.0153557 . vratio new phnc1 if match_m4==1 Variance Ratio Test F[1234,246] = 1.0091513 . vratio majorpty phnc1 if match_m4==1 Variance Ratio Test F[1234,246] = 1.0417575 . vratio age phnc1 if match_m4==1 Variance Ratio Test F[1234,246] = 1.0340706 . vratio pXv phnc1 if match_m4==1 Variance Ratio Test F[246,1234] = 1.0341154 . vratio pXn phnc1 if match_m4==1 Variance Ratio Test F[246,1234] = 1.1130329 . vratio pXm phnc1 if match_m4==1 Variance Ratio Test F[246,1234] = 1.0026408 . vratio pXa phnc1 if match_m4==1 Variance Ratio Test F[1234,246] = 1.0757478 . vratio vXn phnc1 if match_m4==1 Variance Ratio Test F[246,1234] = . . vratio vXm phnc1 if match_m4==1 Variance Ratio Test F[246,1234] = 1.0014428 . vratio vXa phnc1 if match_m4==1 Variance Ratio Test F[246,1234] = 1.0151676 . vratio nXm phnc1 if match_m4==1 Variance Ratio Test F[1234,246] = 1.0058391 . vratio nXa phnc1 if match_m4==1 Variance Ratio Test F[246,1234] = 1.0784228 . vratio mXa phnc1 if match_m4==1 Variance Ratio Test F[1234,246] = 1.0429601 . vratio p2 phnc1 if match_m4==1 Variance Ratio Test F[246,1234] = 1.0022098 . vratio v2 phnc1 if match_m4==1 Variance Ratio Test F[246,1234] = 1.0153557 . vratio n2 phnc1 if match_m4==1 Variance Ratio Test F[1234,246] = 1.0091513 . vratio m2 phnc1 if match_m4==1 Variance Ratio Test F[1234,246] = 1.0417575 . vratio age2 phnc1 if match_m4==1 Variance Ratio Test F[1234,246] = 1.0834228 . . ttest persons if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 1.491498 .0142315 .5001302 1.463577 1.519419 1 | 247 1.518219 .0318577 .5006825 1.45547 1.580967 ---------+-------------------------------------------------------------------- combined | 1482 1.495951 .0129921 .5001524 1.470467 1.521436 ---------+-------------------------------------------------------------------- diff | -.0267206 .0348662 -.0951131 .0416718 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.7664 t = -0.7664 t = -0.7664 P < t = 0.2218 P > |t| = 0.4436 P > t = 0.7782 . ttest vote961 if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .7182186 .0128064 .4500496 .6930939 .7433433 1 | 247 .7125506 .028855 .4534918 .6557162 .769385 ---------+-------------------------------------------------------------------- combined | 1482 .717274 .0117017 .4504764 .6943203 .7402276 ---------+-------------------------------------------------------------------- diff | .005668 .0314091 -.0559432 .0672792 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.1805 t = 0.1805 t = 0.1805 P < t = 0.5716 P > |t| = 0.8568 P > t = 0.4284 . ttest new if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .1149798 .0090809 .3191267 .097164 .1327955 1 | 247 .1133603 .0202133 .3176765 .0735472 .1531735 ---------+-------------------------------------------------------------------- combined | 1482 .1147099 .0082807 .318779 .0984668 .1309529 ---------+-------------------------------------------------------------------- diff | .0016194 .0222268 -.04198 .0452189 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.0729 t = 0.0729 t = 0.0729 P < t = 0.5290 P > |t| = 0.9419 P > t = 0.4710 . ttest majorpty if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .7894737 .0116055 .4078476 .766705 .8122424 1 | 247 .8016194 .0254253 .39959 .7515404 .8516985 ---------+-------------------------------------------------------------------- combined | 1482 .791498 .0105561 .4063747 .7707915 .8122044 ---------+-------------------------------------------------------------------- diff | -.0121457 .0283327 -.0677223 .0434308 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.4287 t = -0.4287 t = -0.4287 P < t = 0.3341 P > |t| = 0.6682 P > t = 0.6659 . ttest age if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 58.3004 .5743277 20.18335 57.17364 59.42717 1 | 247 58.30769 1.262902 19.84806 55.82021 60.79517 ---------+-------------------------------------------------------------------- combined | 1482 58.30162 .5226729 20.12121 57.27636 59.32688 ---------+-------------------------------------------------------------------- diff | -.0072874 1.402952 -2.759274 2.744699 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.0052 t = -0.0052 t = -0.0052 P < t = 0.4979 P > |t| = 0.9959 P > t = 0.5021 . ttest pXv if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 1.128745 .0234008 .8223625 1.082835 1.174655 1 | 247 1.1417 .0532107 .8362724 1.036894 1.246507 ---------+-------------------------------------------------------------------- combined | 1482 1.130904 .0214155 .8244265 1.088896 1.172912 ---------+-------------------------------------------------------------------- diff | -.0129555 .0574822 -.1257107 .0997998 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.2254 t = -0.2254 t = -0.2254 P < t = 0.4109 P > |t| = 0.8217 P > t = 0.5891 . ttest pXn if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .1327935 .0110541 .3884702 .1111066 .1544805 1 | 247 .1376518 .0260773 .4098376 .0862885 .1890152 ---------+-------------------------------------------------------------------- combined | 1482 .1336032 .010182 .3919743 .1136305 .1535759 ---------+-------------------------------------------------------------------- diff | -.0048583 .0273301 -.0584682 .0487516 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.1778 t = -0.1778 t = -0.1778 P < t = 0.4295 P > |t| = 0.8589 P > t = 0.5705 . ttest pXm if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 1.189474 .0215792 .758348 1.147138 1.23181 1 | 247 1.230769 .0483162 .7593487 1.135603 1.325935 ---------+-------------------------------------------------------------------- combined | 1482 1.196356 .0197007 .7584146 1.157712 1.235001 ---------+-------------------------------------------------------------------- diff | -.0412955 .0528696 -.1450029 .0624118 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.7811 t = -0.7811 t = -0.7811 P < t = 0.2174 P > |t| = 0.4349 P > t = 0.7826 . ttest pXa if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 87.63158 1.226284 43.09478 85.22575 90.03741 1 | 247 88.41296 2.643753 41.54985 83.20568 93.62024 ---------+-------------------------------------------------------------------- combined | 1482 87.76181 1.112519 42.82837 85.57953 89.94409 ---------+-------------------------------------------------------------------- diff | -.7813765 2.986141 -6.638896 5.076143 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.2617 t = -0.2617 t = -0.2617 P < t = 0.3968 P > |t| = 0.7936 P > t = 0.6032 . ttest vXn if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 0 0 0 0 0 1 | 247 0 0 0 0 0 ---------+-------------------------------------------------------------------- combined | 1482 0 0 0 0 0 ---------+-------------------------------------------------------------------- diff | 0 0 0 0 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = . t = . t = . P < t = . P > |t| = . P > t = . . ttest vXm if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .588664 .0140079 .4922753 .5611819 .616146 1 | 247 .5910931 .0313453 .4926303 .5293537 .6528325 ---------+-------------------------------------------------------------------- combined | 1482 .5890688 .0127847 .4921689 .5639908 .6141468 ---------+-------------------------------------------------------------------- diff | -.0024291 .0343164 -.0697432 .0648849 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.0708 t = -0.0708 t = -0.0708 P < t = 0.4718 P > |t| = 0.9436 P > t = 0.5282 . ttest vXa if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 44.77409 .9086101 31.93089 42.9915 46.55668 1 | 247 44.75709 2.047064 32.17214 40.72508 48.78909 ---------+-------------------------------------------------------------------- combined | 1482 44.77126 .8302082 31.96032 43.14275 46.39976 ---------+-------------------------------------------------------------------- diff | .017004 2.228435 -4.354223 4.388231 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.0076 t = 0.0076 t = 0.0076 P < t = 0.5030 P > |t| = 0.9939 P > t = 0.4970 . ttest nXm if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .0817814 .0078009 .2741424 .066477 .0970858 1 | 247 .0809717 .0173926 .2733455 .0467143 .115229 ---------+-------------------------------------------------------------------- combined | 1482 .0816464 .0071153 .2739177 .0676892 .0956037 ---------+-------------------------------------------------------------------- diff | .0008097 .0190989 -.0366541 .0382735 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.0424 t = 0.0424 t = 0.0424 P < t = 0.5169 P > |t| = 0.9662 P > t = 0.4831 . ttest nXa if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 3.987045 .3396143 11.93492 3.320759 4.65333 1 | 247 4.02834 .7886159 12.39407 2.47504 5.581641 ---------+-------------------------------------------------------------------- combined | 1482 3.993927 .311933 12.00841 3.38205 4.605805 ---------+-------------------------------------------------------------------- diff | -.0412955 .8372861 -1.683689 1.601098 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.0493 t = -0.0493 t = -0.0493 P < t = 0.4803 P > |t| = 0.9607 P > t = 0.5197 . ttest mXa if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 47.51255 .8556428 30.06948 45.83388 49.19123 1 | 247 48.02024 1.873457 29.44368 44.33018 51.7103 ---------+-------------------------------------------------------------------- combined | 1482 47.59717 .7781656 29.95685 46.07074 49.12359 ---------+-------------------------------------------------------------------- diff | -.5076923 2.088701 -4.604822 3.589437 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.2431 t = -0.2431 t = -0.2431 P < t = 0.4040 P > |t| = 0.8080 P > t = 0.5960 . ttest p2 if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 2.474494 .0426944 1.500391 2.390732 2.558256 1 | 247 2.554656 .095573 1.502048 2.36641 2.742902 ---------+-------------------------------------------------------------------- combined | 1482 2.487854 .0389762 1.500457 2.4114 2.564309 ---------+-------------------------------------------------------------------- diff | -.0801619 .1045987 -.2853394 .1250155 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.7664 t = -0.7664 t = -0.7664 P < t = 0.2218 P > |t| = 0.4436 P > t = 0.7782 . ttest v2 if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .7182186 .0128064 .4500496 .6930939 .7433433 1 | 247 .7125506 .028855 .4534918 .6557162 .769385 ---------+-------------------------------------------------------------------- combined | 1482 .717274 .0117017 .4504764 .6943203 .7402276 ---------+-------------------------------------------------------------------- diff | .005668 .0314091 -.0559432 .0672792 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.1805 t = 0.1805 t = 0.1805 P < t = 0.5716 P > |t| = 0.8568 P > t = 0.4284 . ttest n2 if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .1149798 .0090809 .3191267 .097164 .1327955 1 | 247 .1133603 .0202133 .3176765 .0735472 .1531735 ---------+-------------------------------------------------------------------- combined | 1482 .1147099 .0082807 .318779 .0984668 .1309529 ---------+-------------------------------------------------------------------- diff | .0016194 .0222268 -.04198 .0452189 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.0729 t = 0.0729 t = 0.0729 P < t = 0.5290 P > |t| = 0.9419 P > t = 0.4710 . ttest m2 if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 .7894737 .0116055 .4078476 .766705 .8122424 1 | 247 .8016194 .0254253 .39959 .7515404 .8516985 ---------+-------------------------------------------------------------------- combined | 1482 .791498 .0105561 .4063747 .7707915 .8122044 ---------+-------------------------------------------------------------------- diff | -.0121457 .0283327 -.0677223 .0434308 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = -0.4287 t = -0.4287 t = -0.4287 P < t = 0.3341 P > |t| = 0.6682 P > t = 0.6659 . ttest age2 if match_m4==1, by(phnc1) Two-sample t test with equal variances ------------------------------------------------------------------------------ Group | Obs Mean Std. Err. Std. Dev. [95% Conf. Interval] ---------+-------------------------------------------------------------------- 0 | 1235 38.05975 .665024 23.37065 36.75505 39.36445 1 | 247 37.92138 1.428642 22.45287 35.10745 40.73531 ---------+-------------------------------------------------------------------- combined | 1482 38.03669 .6029815 23.21283 36.8539 39.21948 ---------+-------------------------------------------------------------------- diff | .1383724 1.618512 -3.036449 3.313194 ------------------------------------------------------------------------------ Degrees of freedom: 1480 Ho: mean(0) - mean(1) = diff = 0 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 t = 0.0855 t = 0.0855 t = 0.0855 P < t = 0.5341 P > |t| = 0.9319 P > t = 0.4659