Department of Family and Community Nursing, University of Pennsylvania, Philadelphia, PA, USA.
Center for Health Incentives and Behavioral Economics, University of Pennsylvania, Philadelphia, PA, USA.
Behav Med. 2023 Jan-Mar;49(1):53-61. doi: 10.1080/08964289.2021.1977603. Epub 2021 Nov 30.
Incentives are a useful tool in encouraging healthy behavior as part of public health initiatives. However, there remains concern about motivation crowd out-a decline in levels of motivation to undertake a behavior to below baseline levels after incentives have been removed-and few public health studies have assessed for motivation crowd out. Here, we assess the feasibility of identifying motivation crowd out following a lottery to promote participation in a Chagas disease vector control campaign. We look for evidence of crowd out in subsequent participation in the same behavior, a related behavior, and an unrelated behavior. We identified potential motivation crowd out for the same behavior, but not for related behavior or unrelated behaviors after lottery incentives are removed. Despite some limitations, we conclude that motivation crowd out is feasible to assess in large-scale trials of incentives.
激励措施是鼓励健康行为的一种有用工具，也是公共卫生倡议的一部分。然而，人们仍然担心动机挤出——在激励措施取消后，从事某种行为的动机水平下降到基准水平以下——而且很少有公共卫生研究评估动机挤出。在这里，我们评估了通过彩票来促进参与恰加斯病病媒控制运动的动机挤出的可行性。我们寻找在彩票激励措施取消后，同一行为、相关行为和不相关行为的后续参与中存在挤出的证据。我们发现彩票激励措施取消后，同一行为存在潜在的动机挤出，但相关行为或不相关行为不存在。尽管存在一些限制，我们的结论是，在大规模激励试验中，动机挤出是可行的。
