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||Improving self-reports of active and sedentary behaviors in large epidemiologic studies.
||Matthews CE, Moore SC, George SM, Sampson J, Bowles HR
||Exerc Sport Sci Rev
||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.