Interaction Effects

Interaction effects in regression

January 6, 2014

I was asked to review a report and in the regression analysis several independent variables were shown to not have a significant relationship with the dependent variable. While I have no access to the raw data, to me it was obvious that there must be at least one significant interaction effect among the independent variables and hence I decided to start off 2014 by writing about interactive effects in regression! This can be a very long discussion but to be in-line with my approach here at IntroSpective Mode, is we keep things brief and concise, and leave it up to the reader to go elsewhere [READ MORE]