Iteractions sex and education categories, i.e.,

 MODEL: CON2= A_M_E1*WIN2*(SEX=M)*(EDUC=1) + ... + A_M_E4*WIN2*(SEX=M)*(EDUC=4)+
              A_F_A1*WIN2*(SEX=F)*(EDUC=2) + ... + A_F_A6*WIN2*(SEX=F)*(EDUC=4)

 Number of observations = 1039  E'PZ*E = .401287E-32

                          Standard
 Parameter  Estimate        Error       t-statistic   P-value
 A_M_E1     .408694       .096833       4.22061       [.000]
 A_M_E2     .365030       .076051       4.79982       [.000]
 A_M_E3     .161185       .030102       5.35459       [.000]
 A_M_E4     .248677       .097895       2.54025       [.011]
 A_F_E1     .411481       .110652       3.71869       [.000]
 A_F_E2     .247509       .075982       3.25747       [.001]
 A_F_E3     .296863       .073163       4.05755       [.000]
 A_F_E4     .256214       .138078       1.85557       [.064]

 Standard Errors computed from   heteroscedastic-consistent matrix 
 (Robust-White)

 Dependent variable: CON2

        Mean of dep. var. = 4.60932  Std. error of regression = 8.40351
   Std. dev. of dep. var. = 9.07813                 R-squared = .149706
 Sum of squared residuals = 72808.1        Adjusted R-squared = .143933
    Variance of residuals = 70.6189             Durbin-Watson = 1.97790 [<.479]