Dr. Williams is interested in studying changes in exercise rates among 12-, 25-, 35-, and 45-year-olds . Dr. Williams is conducting a _____ study.
A) correlational
B) qualitative
C) longitudinal
D) cross-sectional

Question

Quizplus · Accepted Answer

Dr. Williams is conducting a cross-sectional study because this type of study involves analyzing data from a population, or a representative subset, at a specific point in time. By comparing different age groups simultaneously, Dr. Williams is not following the same individuals over time (which would be a longitudinal study) but is instead looking at different age groups at one point in time to understand differences or changes in exercise rates among those groups.

Dr Williams Is Interested in Studying Changes in Exercise Rates