Would an independent-samples t test be appropriate when using three groups (a control group and two experimental groups) to compare differences on an IQ test? Explain.
A) Yes; IQ test scores is a scale variable.
B) Yes; the participants belong to different groups.
C) No; there are more than two groups.
D) No; the independent variable should be a scale variable.

Question

Quizplus · Accepted Answer

An independent-samples t test is not appropriate for comparing three groups as it is designed to compare only two groups. Instead, an analysis of variance (ANOVA) should be used to compare multiple groups.

Would an Independent-Samples T Test Be Appropriate When Using Three