A researcher is curious about the effect of sleep on students' test performances. He chooses 60 students and gives each two tests: one given after two hours of sleep and one after eight hours of sleep. The test the researcher should use would be a related samples test.

Question

Quizplus · Accepted Answer

A related samples test is appropriate in this scenario as each student takes two tests and the results are related or connected. In this case, the two tests are taken after different amounts of sleep. The related samples test compares the mean difference between the two related groups, which in this case would be the test scores obtained after 2 hours of sleep and after 8 hours of sleep for each student.

A Researcher Is Curious About the Effect of Sleep on Students