A researcher wants to see if increased screen time is associated with vision changes over time in self-reported "heavy" gamers. Which of the following experimental designs will yield the most useful data for the researcher?
A) Cross-sectional study
B) Retrospective design
C) Follow-up study
D) Trend study

Question

Quizplus · Accepted Answer

A follow-up study, also known as a longitudinal study, tracks the same individuals over time, allowing the researcher to observe changes in vision associated with screen time in heavy gamers.

A Researcher Wants to See If Increased Screen Time Is