Pope Lizzy, Harvey Jean
a Food and Brand Lab, Charles H. Dyson School of Applied Economics and Management , Cornell University , Ithaca , New York.
J Am Coll Health. 2014;62(2):81-90. doi: 10.1080/07448481.2013.847840.
To determine whether fitness-center attendance established with the provision of weekly monetary incentives persisted after the discontinuation, or decreased frequency, of incentives.
One hundred seventeen first-year college students participated during the 2011-2012 academic year.
A randomized controlled trial with control, discontinued-incentive, and continued-incentive conditions was conducted. During fall semester, students in incentive conditions received weekly monetary payments for meeting fitness-center attendance goals. During spring semester, discontinued-incentive condition participants no longer received incentives, whereas continued-incentive condition participants received payments on a variable-interval schedule. ID-card attendance records tracked fitness-center attendance.
Goal completion decreased from 63% in the incentive groups during the fall semester to 3% in the discontinued-incentive condition, and 39% in the continued-incentive condition during the spring semester. There was not a significant interaction between condition and body mass index change, F(6, 332) = 0.67, p = .68.
Incentive discontinuation resulted in students no longer meeting fitness-center attendance goals. A variable-interval reward schedule better maintained attendance.
确定在提供每周货币激励措施的情况下建立的健身中心出勤情况，在激励措施停止或频率降低后是否持续存在。
117名一年级大学生在2011 - 2012学年参与研究。
进行了一项具有对照、停止激励和持续激励条件的随机对照试验。在秋季学期，处于激励条件下的学生若达到健身中心出勤目标，每周可获得货币支付。在春季学期，停止激励条件组的参与者不再获得激励，而持续激励条件组的参与者按可变间隔时间表获得支付。通过身份证出勤记录追踪健身中心出勤情况。
在秋季学期，激励组的目标完成率从63%降至春季学期停止激励条件组的3%，以及持续激励条件组的39%。条件与体重指数变化之间没有显著交互作用，F(6, 332) = 0.67，p = 0.68。
激励措施的停止导致学生不再达到健身中心出勤目标。可变间隔奖励时间表能更好地维持出勤情况。
