Improving Self-Reports of Active and Sedentary Behaviors in Large Epidemiologic Studies

In Brief Questionnaires that assess active and sedentary behaviors in large-scale epidemiologic studies are known to contain substantial errors. We present three options for improving measures of physical activity behaviors in large-scale epidemiologic studies, discuss the problems and prospects for each of these options, and highlight a new direction for measuring these behaviors in such studies. We present three options for improving self-report measures of physically active and sedentary behaviors in large-scale epidemiologic studies.