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The effect size for the data from an independent-measures t test can be measured by r 2, which is the percentage of variance accounted for.

The effect size for the data from an independent-measuresttest can be measured byr2, which is the percentage of variance accounted for. Which of the following also produces the value forr2?

Group of answer choices

Squaring the Pearson correlation for the same data

None of the other options will producer2.

Squaring the point-biserial correlation for the same data

Squaring the Spearman correlation for the same data

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