If an independent-groups t test has 13 subjects in each group, then the degrees of freedom are:
A) 26.
B) 24.
C) 13.
D) 12.

Name: If an independent-groups t test has 13 subjects in each group, then the degrees of freedom are: A) 26. B) 24. C) 13. D) 12.
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Quizplus · Accepted Answer

The degrees of freedom for an independent-groups t test is calculated as the total number of subjects in both groups minus 2. With 13 subjects in each group, the total is 26, so the degrees of freedom is 26 - 2 = 24.

If an Independent-Groups T Test Has 13 Subjects in Each