A paired-samples t test is used when there are _____ groups, and a within-groups ANOVA is used when there are at least _____ groups.
A) 3; 2
B) 2; 3
C) 1; 3
D) 1; 2

Question

Quizplus · Accepted Answer

A paired-samples t test is used for comparing two groups that are related or paired, such as pre- and post-treatment measures of the same participants. An within-groups ANOVA is used when there are at least three groups, and it analyzes the differences within each group or condition. Therefore, the best choice is B, where a paired-samples t test is used for two related groups, and a within-groups ANOVA is used for at least three groups.

A Paired-Samples T Test Is Used When There Are _____