A researcher calculates the t-test for independent means and reports the following result: t(24) = 2.16, p

Question

A researcher calculates the t-test for independent means and reports the following result: t(24) = 2.16, p < .05. This research study consisted of a TOTAL of ______ participants.
A) 26
B) 25
C) 24
D) 23

Quizplus · Accepted Answer

The degrees of freedom (df) for a t-test for independent means is calculated as n1 + n2 - 2, where n1 and n2 are the sample sizes of the two groups. Given that df = 24, solving for n1 + n2 gives us 26 participants in total.

A Researcher Calculates the T-Test for Independent Means and Reports