Which of the following conditions would make it inappropriate to use an independent-groups t test?
A)when the independent variable is qualitative
B)when the independent variable is within-subjects
C)when the independent variable is quantitative
D)when the dependent variable is measured on a level that approximates interval characteristics

Question

Quizplus · Accepted Answer

An independent-groups t test compares the means of two separate groups on a continuous dependent variable. However, if the independent variable is within-subjects, such as when participants are measured twice (pre-test and post-test) and these measurements are being compared, then a within-subjects t test would be more appropriate.

Which of the Following Conditions Would Make It Inappropriate to Use