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Bell Curve

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604 Appendix 4 Appendix 4 605TermInterceptzAFQT89zSESzAgeAdult 14[2 Rio-UnmarMom]Adult14[BioIStep-UnmarMom]Adult14[Other-UnmarMom]Parameter EstimatesEstimate Std Error ChiSquare Proh>ChiSq-1.2952650 0.1066175 147.59 0.0000-0.3925580 0.0774209 25.71 0.0000+0.1910425 0.0783345 5.95 0.0147-0.0278086 0.0617722 0.20 0.6526DEPENDENT VARIABLE: First birth out of wedlock.SAMPLE RESTRICTIONS: Women with at least one child.Basic Analysis:Whole-Model TestSource DF -LogLikelihood Chisquare Proh>ChiSqModel 3 39.86862 79.73723 0.000000Error 1217 461.90618C Total 1220 501.77480RSquare (U) 0.0795Observations 1221Parameter EstimatesTerm Estimate Std Error Chisquare Proh>ChiSqIntercept -1.9432320 0.0938185 429.01 0.0000zAFQT89 -0.6537960 0.1239489 27.82 0.0000zSES -0.3052597 0.1189878 6.58 0.0103zAge -0.2405246 0.0902516 7.10 0.0077The High School Sample:Whole-Model TestSource DF -LogLikelihood Chisquare Prob>ChiSqModel 3 15.09449 30.18898 0.000001Error 512 187.89956C Total 515 202.99405RSquare (U) 0.0744Observations 516Parameter EstimatesTerm Estimate Std Error Chisquare Prob>ChiSqIntercept -2.1890354 0.1658602 174.19 0.0000zAFQT89 -0.7846895 0.2142378 13.42 0.0002zSES -0.2428727 0.2165927 1.26 0.2621z Ag e -0.4145066 0.1447961 8.20 0.0042The College Sample:Whole-Model TestSource DF -LogLikelihood Chisquare Proh>ChiSqModel 3 1.1299340 2.259868 0.520253Error 112 4.6193334C Total 115 5.7492674RSquare (U) 0.1965Observations 116Parameter EstimatesTerm Estimate Std Error Chisquare Prob>ChiSqIntercept -6.37685240 3.9705049 2.58 0.1083zAFQT89 -0.3 1644570 1.9844225 0.03 0.8733zSES -0.72608390 1.5248314 0.23 0.6340zAge +2.58214793 2.8423709 0.83 0.3636Basic analysis, add in^ Living Arrangements with Adults at Age 14(Adult14):Whole-Model TestSource DF -LogLikelihood Chisquare Prob>ChiSqModel 6 46.62389 93.24777 0.000000Error 1214 455.15091C Total 1220 501.77480RSquare (U) 0.0929Observations 1221Parameter EstimatesTerm Estimate Std Error Chisquare Prob>ChiSqIntercept -1.8260275 0.1541482 140.33 0.0000zAFQT89 -0.6620720 0.1259903 27.61 0.0000zSES -0.2460336 0.1221771 4.06 0.0440zAge -0.2109268 0.0909302 5.38 0.0204Adult 14[2 Bio-UnmarMom] -0.2816545 0.1634249 2.97 0.0848Adult14[Bio/Step-UnmarMom] +0.2928507 0.206926 2.00 0.1570Adult14[Other-UnmarMom] -0.4991 684 0.3593261 1.93 0.1648Basic analysis, Adding Presence of Biological Parents at Age 14 ( I4Bio) :Whole-Model TestSource DF -LogLikelihood Chisquare Prob>ChiSqModel 6 47.56391 95.12783 0.000000Error 1214 454.21088C Total 1220 501.77480RSquare (U) 0.0948Observations 1221

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