The t Test If we calculate a t test for matched groups with 20 subjects, there will be ___ degrees of freedom.
A)18
B)19
C)20
D)38

Name: The t Test If we calculate a t test for matched groups with 20 subjects, there will be ___ degrees of freedom. A)18 B)19 C)20 D)38
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Question

Quizplus · Accepted Answer

The formula for degrees of freedom for a matched groups t test is (number of pairs) - 1. Since there are 20 subjects, there will be 19 pairs and therefore 19 degrees of freedom (B).

The T Test If We Calculate a T Test for Matched