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A study found statistically significant results for a hypothesis tested with an

ID: 3235192 • Letter: A

Question

A study found statistically significant results for a hypothesis tested with an independent-samples t test. The author of the study reported her effect size for the test as 1.24. What is true of the two sample means?

The two sample means do not indicate meaningful differences between groups.

The two sample means overlap 85 percent.

The two samples likely come from the same distribution.

The two sample means are 1.24 standard deviations apart.

A.

The two sample means do not indicate meaningful differences between groups.

B.

The two sample means overlap 85 percent.

C.

The two samples likely come from the same distribution.

D.

The two sample means are 1.24 standard deviations apart.

Explanation / Answer

The two sample means do not indicate meaningful differences between groups.

Option A is correct.