03-08-2017 04:45 PM
Assuming that your dependent variable is a percentage, you should consider transforming it for doing regression. Good documentation on this topic is given in SAS/IML doc :
arcsin(sqrt(y)) (where y is between 0 and 1) is the preferred transformation when the denominators of the proportions are within the same order of magnitude.
03-08-2017 04:47 PM
Thanks! The depdenent variable is not a percentage, it's a ranking (0 is lowest, 100 is highest and have values all throughout).
But I assume I could divide all variable by 100 and use that technique?