Imagine that you conducted an independent-groups t test with 12 participants in each group. For a two-tailed test, the t_cv at a = .05 would be A)±1.717. B)±2.074. C)±1.711. D)±2.064.

Question

Quizplus · Accepted Answer

The degrees of freedom for an independent-groups t test with 12 participants in each group is 22 (df = n1 + n2 - 2 = 12 + 12 - 2 = 22). Using a two-tailed test with alpha of .05, we consult a t-distribution table with 22 degrees of freedom to find the critical t value. The closest value in the table is t(0.025, 22) = ±2.074. Therefore, the correct answer is B.

Imagine That You Conducted an Independent-Groups T Test with 12