I did hierarchical regression analysis on my data due to having moderation effects in my research model. R2 increased from .695 in model1 (main effect only) to .734 in model2 (main &interaction ...
I am thinking of building a model predicting a ratio a/b, where a <= b, a > 0, b > 0. So, the ratio would be between 0 and 1. For independent variables, I have a continuous one and several 0/1 ...