Question

Fifty university students are randomly chosen from UM-Dearborn COB. Their physical fitness routines and academic performance will be assessed. They are asked to maintain a diary over a semester to record their physical activity every week. At the end of the semester, their GPA is recorded as well. The resulting information is categorized per student with two variables: physical activity (recorded as “above average", "average", or “below average") and the semester's GPA. The primary interest of the study is to understand if physical activity promotes better academic performance.

Which variable is the explanatory variable in this study? Physical activity The diary Academic performance GPA

Answer 1

Explanatory variable is Physical activity recorded. ( average, above average, below average)

The response variable is academic performance GPA.