Hello Physicsforums! I've stumbeld on a problem in statistics (which is one of my weaknesses when it comes to math). I´m currently trying to analyze data from a study and using multiple regression analysis. From regression analysis with one independent variable I´m used to mainly focus on the significance values. When there are more independent variables however I understand that it is the beta and tolerance values that are of importance. I am now wondering if anybody could help me understand why the significance value isn't relevant? + what determines wheater it is the standardized or not standardized coefficients that are relevant for my study? Thanks in advance!