Microrandomized trials: An experimental design for developing just-in-time adaptive interventions.
نویسندگان
چکیده
OBJECTIVE This article presents an experimental design, the microrandomized trial, developed to support optimization of just-in-time adaptive interventions (JITAIs). JITAIs are mHealth technologies that aim to deliver the right intervention components at the right times and locations to optimally support individuals' health behaviors. Microrandomized trials offer a way to optimize such interventions by enabling modeling of causal effects and time-varying effect moderation for individual intervention components within a JITAI. METHOD The article describes the microrandomized trial design, enumerates research questions that this experimental design can help answer, and provides an overview of the data analyses that can be used to assess the causal effects of studied intervention components and investigate time-varying moderation of those effects. RESULTS Microrandomized trials enable causal modeling of proximal effects of the randomized intervention components and assessment of time-varying moderation of those effects. CONCLUSION Microrandomized trials can help researchers understand whether their interventions are having intended effects, when and for whom they are effective, and what factors moderate the interventions' effects, enabling creation of more effective JITAIs.
منابع مشابه
Running Head: Micro-Randomized Trials Micro-Randomized Trials: An Experimental Design for Developing Just-in-Time Adaptive Interventions
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ورودعنوان ژورنال:
- Health psychology : official journal of the Division of Health Psychology, American Psychological Association
دوره 34S شماره
صفحات -
تاریخ انتشار 2015