Suppose you conducted an experiment with 20 participants in each group. You would have _____ degrees of freedom in an independent-groups design and _____ degrees of freedom in a correlated-groups design.
A) 38; 19
B) 19; 38
C) 20; 20
D) 18; 19

Question

Quizplus · Accepted Answer

In an independent-groups design, degrees of freedom are calculated as (n1 + n2 - 2), which is (20 + 20 - 2) = 38. In a correlated-groups design, degrees of freedom are calculated as (n - 1), which is (20 - 1) = 19.

Suppose You Conducted an Experiment with 20 Participants in Each