Taci finds a correlation between a manual dexterity test and performance of .30. She squares this value and obtains a value of .09. This value of .09 represents the:

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The value of .09 represents the coefficient of determination, also known as R-squared. This value indicates the proportion of variance in one variable that can be explained by another variable. In this case, the manual dexterity test accounts for 9% of the variance in performance. The performance coefficient and coefficient of agreement are not relevant to correlation coefficients, and the validity coefficient is typically used to refer to the correlation between a predictor and a criterion variable in a validity study, rather than a simple correlation between two variables.

Taci Finds a Correlation Between a Manual Dexterity Test and Performance