For the following studies, indicate whether a repeated measures t test is the ap

Question

For the following studies, indicate whether a repeated measures t test is the appropriate analysis. Explain your answers.

a. A researcher is comparing academic performance for college students who participate in organized sports and those who do not

b. A researcher is testing the effectiveness of a new blood-pressure medication by comparing blood-pressure readings before and after each participant takes the medication.

c. A researcher is examining how light intensity influences color perception.

Explanation / Answer

Ans:

a)As,here reasearcher is comparing academic performance of two different groups,one is who paticipate and another is who do not,so here independent samples t test will be used.

So,repeated measures t test is not appropriate here.

b)As,researcher is methe asuring the blood pressure of same subjects at different times,so repeated measures t test is appropriate here.

c)As,same subjects will be used to identify the color by changing the light intensity at different times,so repeated meaures t test is appropriate.

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