All other things being equal, the ability of two variables to predict a third will increase as the correlation between them decreases. Explain this fact in terms of semipartial correlation. All...

All other things being equal, the ability of two variables to predict a third will increase as the correlation between them decreases. Explain this fact in terms of semipartial correlation.

All other things being equal, the stability of any given regression coefficient across different samples of data is partly a function of how that variable correlates with other predictors. Explain this fact.