Comparing 2 regression models with same DV and different IVs

Posted by John D Crawford on Mar 16, 2011; 5:21am
URL: http://spssx-discussion.165.s1.nabble.com/Comparing-2-regression-models-with-same-DV-and-different-IVs-tp3759374.html

I would like to know how to obtain the statistical significance of the difference in R-squareds obtained from 2 regression equations, in the same sample, and with the same dependent variable, but with different sets of predictor variables. I would also like to know the answer to the similar question with logistic regression. That is, how to obtain the statistical significance of the differences in predictive ability for two models, with the same binary dependend variable, but with a different set of predictors. Help much appreciated.