Now do the same in SPSS. Calculate the weighted means of two groups and
compare their difference with the analogous regression-coefficient. I cannot
do it, because I don't have access to SPSS. But two years ago we have found,
that in SPSS the mean difference was not equal to the
regression-coefficients. Only the results of the regression analysis were
correct (i.e. equal to the Stata results).
Well, in fairness to SPSS, I just tried it and it and it seemed to
work fine. But Stata is still a lot better. :)
