A sample of $n = 16$ scores produces a $t$ statistic of $t = +2.00$. If the sample is used to measure effect size with $r^2$, which value will be obtained for $r^2$? \$\boxed{a. r^2 = 0.21} \bigcirc b. r^2 = 0.10 \bigcirc c. r^2 = 0.20 \bigcirc d. r^2 = 0.11
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Effect size is a measure of the magnitude of a treatment or intervention's effect on a variable of interest. It is used to quantify the practical significance of a result. In this case, the t-statistic of +200 is not a valid measure of effect size. The Show more…
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