Dr. Shar wants to test her theory that people feel less stressed after exercising. She measures students' stress levels and then has them perform 30 minutes of moderate exercise on a treadmill. After the treadmill segment, she measures their stress levels again. This is an example of a(n)____ design.
A)factorial
B)between-subjects
C)within-subjects
D)survey

Question

Quizplus · Accepted Answer

This is an example of a within-subjects design because the same group of students is measured before and after the intervention (exercise), allowing for direct comparison of stress levels within the same individuals over time.

Dr Shar Wants to Test Her Theory That People Feel