Question

For each of the situations below, calculate both the r-squared and the Cohens d measure of effect size and specify whether e

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Answer #1

The formulas are:

2 + df

d VN

The results of the calculations from the formulas are shown in the below table:

df N = df + 1 t r^2 d Effect
12 13 2.07 0.26 0.57 Medium
24 25 1.9 0.13 0.38 Small
24 25 2.51 0.21 0.50 Medium
63 64 2.96 0.12 0.37 Small
32 33 1.31 0.05 0.23 Small
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