A researcher calculates the t-test for independent means and reports the following result: t(48) = 2.97, p

Question

A researcher calculates the t-test for independent means and reports the following result: t(48) = 2.97, p < .01. This research study consisted of a TOTAL of ______ participants.
A) 25
B) 48
C) 49
D) 50

Quizplus · Accepted Answer

The t-test results include the degrees of freedom (df), which is calculated by adding the sample sizes for both groups subtracted by 2. In this case, the df is 48, which means that the total number of participants in the study is 50 (48 + 2). Therefore, the correct answer is D.

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