Appendix.

<p>The appendix contains the following information: 1) Coding Scheme of school type; 2) The twin correlations (Table A1); 3) The model comparisons (Tables A2 and A3); 4) Robustness Checks (1.: Accounting for assortative mating (Table A4); 2. Using a composite SES score (Table A5); 3.: No residualiza... View More