A researcher is curious about the effect of sleep on students' test performances.He chooses 60 students and gives each 2 tests: one given after 2 hours' sleep and one after 8 hours' sleep.The test the researcher should use would be a related samples test.

Question

Quizplus · Accepted Answer

A related samples test (also known as dependent samples or paired samples test) compares the means of two samples that are related to each other, such as in this case where the same group of students takes two different tests. Therefore, a related samples test is appropriate for this study.

A Researcher Is Curious About the Effect of Sleep on Students