Which of the following is not an assumption of the independent samples t-test?
A) The data is interval or ratio.
B) Observations are unrelated.
C) The two populations being compared have equal variances.
D) The effect size is not zero.

Question

Quizplus · Accepted Answer

The independent samples t-test does not assume that the effect size is not zero. Instead, it tests whether there is a significant difference between the means of two groups, which implies testing if the effect size is different from zero, not assuming it.

Which of the Following Is Not an Assumption of the Independent