Calculate the r² statistic for t = 2.98 and two groups of 15 individuals each. A) .10 B) .24 C) .37 D) .41

Question

Quizplus · Accepted Answer

The r² statistic, which is not a standard statistical measure, seems to be a typographical error or a misunderstanding. However, if we interpret the question as asking for the effect size using Cohen's d for independent samples (which is a common context where group sizes and a t-value are relevant), we can calculate it as follows: Cohen's d = t / sqrt(n1 + n2 - 2) = 2.98 / sqrt(15 + 15 - 2) = 2.98 / sqrt(28) ≈ 0.56. This value does not match any of the provided options, suggesting a possible misunderstanding in the question's intent. However, without a clear, recognized statistical measure or further context, the closest standard calculation related to t-values and group sizes would involve Cohen's d, which does not directly match any given options. Therefore, the correct answer based on the provided options cannot be determined without additional context or clarification on the specific statistic intended.

Calculate the R2 Statistic for T = 2

Calculate the R² Statistic for T = 2