August 10th, 2006, 10:05 am
Hi I have a question regarding multiple regression, would be grateful for any pointers.The situations it that I have a couple of potential sets of variables that I think are significant for a particular independent variable:visually one is much more significant than the other.I can run regressions with one variable, and then with two (and see that the coefficient of determination increases with the addition of the second variable), but how can I test that the addition of the second variable is significant? I imagine this situation must occur in numerous situations, is there a named test I can look up?Many thanks.