An index of the strength of the relationship between the criterion variable and the set of predictor variables is provided by the _____,symbolized by _____. A)squared t;t² B)squared multiple correlation coefficient;R² C)regression coefficient;á D)multiple r;r²

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The squared multiple correlation coefficient (symbolized by R) provides an index of the strength of the relationship between the criterion variable and the set of predictor variables. It represents the proportion of variance in the criterion variable that can be explained by the predictor variables. The squared multiple correlation coefficient is preferred over the regular multiple correlation coefficient because it gives a more interpretable measure of effect size (the proportion of shared variability) and is bounded between 0 and 1.

An Index of the Strength of the Relationship Between the Criterion