How does the test statistic differ for a t-test using the repeated measures vers

Question

How does the test statistic differ for a t-test using the repeated measures versus the matched samples design?

A) Using the matched samples design, we analyze raw scores, whereas using the repeated measures, we analyze difference scores before computing the test statistic for the related samples t-test.

B) Using the repeated measures design, we analyze raw scores, whereas using the matched samples design, we analyze difference scores before computing the test statistic for the related samples t-test.

C) Using the repeated measures design, we treat each pair of scores as related; we do not treat each pair of scores as related using the matched samples design.

D) The test statistic for the repeated measures and the matched samples designs do not differ; the test statistic is computed the same.

Explanation / Answer

B) Using the repeated measures design, we analyze raw scores, whereas using the matched samples design, we analyze difference scores before computing the test statistic for the related samples t-test.

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