Calculate the r² statistic for t = 4.64 with N = 50 for each of the two groups. A) .05 B) .18 C) .30 D) .31

Name: Calculate the r 2 statistic for t = 4.64 with N = 50 for each of the two groups. A) .05 B) .18 C) .30 D) .31
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Quizplus · Accepted Answer

The r equivalent for a t-test can be calculated using the formula $ r = \sqrt{\frac{t^2}{t^2 + df}} $, where $ df = N - 2 $ for two groups combined. Here, $ N = 50 $ so $ df = 50 - 2 = 48 $. Plugging in the values, $ r = \sqrt{\frac{4.64^2}{4.64^2 + 48}} \approx 0.18 $.

Calculate the R2 Statistic for T = 4

Calculate the R² Statistic for T = 4