Comparing R-sqaured in Multiple Regressions

For 2 multiple regressions models (same dependent variables), can we compare the R-squared directly to see which model is better? If so, as long as I can get lower R-squared by including more independent variables, that should be ok, right?

2 Comments

susancfaFebruary 6th, 2009 at 3:42 pm

For mulitple regression, you have to use adjusted R squared. I forgot the equation. You may look up in the web…

EditorFebruary 6th, 2009 at 9:50 pm

Maser, you can find the adjusted R-squared equation here: http://minute-class.com/finance/multiple-liner-regression/

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