== Questions about correlations ==

 1. [:FAQ/Collinearity:What is Collinearity in multiple regression, and what do I do about it?]

 1. [:FAQ/WilliamsSPSS:How do I compare a pair of correlations?]
 
 1. [:FAQ/Power: Power calculations for testing if correlations equal zero] 

 1. [:FAQ/polychoric: What are polychoric correlations and how do I compute them and use in SPSS?]

 1. [:FAQ/icc: What are intraclass correlations and how do I use them?]