Most of the large cohort studies on the health benefits of habitually engaging in physical activity stem from self-reported physical activity data. However, self-reported information is subject to recall-bias and is likely to be an overestimation of the actual behavior. Therefore, many studies measure the intensity levels of physical activity via accelerometers (a small device that have the ability to capture intensity of physical activity). Which of the following would be an issue of the data gathered from accelerometers from the behavioral economics point of view? a. They primarily measure locomotor activity when worn over the hip (typical placement position), and so miss upper body movement. b. They cannot distinguish whether a person is carrying any weight (e.g., walking carrying a heavy bag expends more energy vs. walking with no load) c. They do not measure all types of activity (e.g. swimming, cycling) d. Participants change their behavior because they are being observed (hawthorne effect

Most of the large cohort studies on the health benefits of habitually engaging in physical activity stem from self-reported physical activity data. However, self-reported information is subject to recall-bias and is likely to be an overestimation of the actual behavior. Therefore, many studies measure the intensity levels of physical activity via accelerometers (a small device that have the ability to capture intensity of physical activity). Which of the following would be an issue of the data gathered from accelerometers from the behavioral economics point of view? a. They primarily measure locomotor activity when worn over the hip (typical placement position), and so miss upper body movement. b. They cannot distinguish whether a person is carrying any weight (e.g., walking carrying a heavy bag expends more energy vs. walking with no load) c. They do not measure all types of activity (e.g. swimming, cycling) d. Participants change their behavior because they are being observed (hawthorne effect

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