The effect size for the data from an independent-measures t test can be measured by r²,which is the percentage of variance accounted for.Which of the following also produces the value for r²?
A)Squaring the Spearman correlation for the same data
B)Squaring the point-biserial correlation for the same data
C)Squaring the Pearson correlation for the same data
D)None of the other options will produce r².

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The Answer of The effect size for the data from an independent-measures t test can be measured by r²,which is the percentage of variance accounted for.Which of the following also produces the value for r²?
A)Squaring the Spearman correlation for the same data
B)Squaring the point-biserial correlation for the same data
C)Squaring the Pearson correlation for the same data
D)None of the other options will produce r².

The Effect Size for the Data from an Independent-Measures T