Sex interactions PLUS Education dummies, i.e.: MODEL: CON1=A_M*WIN1*(SEX=M) + A_F*WIN1*(SEX=F)+A_E1*(Educ=1)+...+A_E4*(Educ=4) Number of observations = 456 E'PZ*E = .118652E-32 Standard Parameter Estimate Error t-statistic P-value A_M .176876 .058841 3.00601 [.003] A_F .274710 .108802 2.52486 [.012] A_E1 6.00248 1.29569 4.63263 [.000] A_E2 6.13369 1.00994 6.07330 [.000] A_E3 6.91781 1.29800 5.32958 [.000] A_E4 11.0917 2.56430 4.32544 [.000] Standard Errors computed from heteroscedastic-consistent matrix (Robust-White) Dependent variable: CON1 Mean of dep. var. = 10.5024 Std. error of regression = 10.1398 Std. dev. of dep. var. = 11.2242 R-squared = .192869 Sum of squared residuals = 46267.2 Adjusted R-squared = .183901 Variance of residuals = 102.816 Durbin-Watson = 1.91806 [<.281]