Problem
An epidemiologist is interested in studying the impact of time spent on Instagram on anxiety levels in a group of adolescents ages 14-16. Describe a study design (case-control, cohort, cross-sectional, or experimental) that the epidemiologist could potentially utilize to study whether there is an exposure-outcome relationship. Justify why you chose this method (things such as ease of conducting the study, monetary cost, participation, scientific results, time involved, etc.).