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Coefficient of Determination

This is the square of the Coefficient of Correlation (R2). Its characteristics are:

• it is always positive, it gives the strength of the relationship without distinguishing between positive and negative correlation
• it is often thought to give more intuitive results. For example if R = 0.5 then R2 = 0.25. This would be a weak relationship and 0.25 seem a better indicator of a weak relationship than 0.5.

 Correlation and Regression Analysis are both covered in the MiC Quality course in Advanced Statistics Try out our courses by taking the first module of the Primer in Statistics free of charge.
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