The adjusted r-squared is helpful for multiple regression and corrects for erroneous regression, giving you a more accurate ...

Simply collecting data is not enough. You can fill spreadsheets with data, but it's useless if you can't act on it. Regression is one of the most powerful statistical tools for finding relationships ...

Journal of Educational Statistics, Vol. 10, No. 3, Special Issue: Teaching Statistics (Autumn, 1985), pp. 197-209 (13 pages) ...