A group of students completes the 12-minute run prior to a six-week jogging unit. At the end of the unit, the 12-minute run test is administered a second time. The instructor is interested in knowing if there is a statistically significant difference in the results of the two tests. To answer this question, the appropriate statistical test would be:
A) t-test for independent samples.
B) t-test for dependent samples.
C) simple analysis of variance.
D) two-way analysis of variance.
E) multiple regression analysis.

Question

Quizplus · Accepted Answer

The appropriate statistical test in this case would be a t-test for dependent samples, also known as a paired t-test. This is because the same group of students is being tested before and after the six-week jogging unit, and the two sets of data are dependent on each other. The t-test for independent samples would be used if there were two different groups of students being tested (e.g. one group who did the jogging unit and another group who did not). The other options are not appropriate for this scenario.

A Group of Students Completes the 12-Minute Run Prior to a Six-Week