Videos: Introduction to Just-in-Time Adaptive Interventions

March 13, 2017:

Susan MurphyIn our latest video releases, Methodology Center Investigator Susan Murphy introduces some innovative tools for building adaptive health interventions that can be delivered through a smartphone or other mobile device. In the first video, she introduces the just-in-time adaptive intervention (JITAI), a type of intervention that uses real-time data to deliver interventions as needed via mobile devices. In the second video, she introduces the microrandomized trial, an innovative trial design for building JITAIs. In the third video, Susan discusses data analysis to inform the development of a JITAI.



Nahum-Shani, I., Smith, S.N. Spring, B. J., Collins, L. M., Witkiewitz, K., Tewari, A., & Murphy, S. A. (2018). Just-in-time adaptive interventions (JITAIs) in mobile health: Key components and design principles for ongoing health behavior support. Annals of Behavioral Medicine. doi:10.1007/s12160-016-9830-8


Klasnja, P., Hekler, E. B., Shiffman, S., Boruvka, A., Almirall, D., Tewari, A. and Murphy, S. A. (2015). Micro-randomized trials: An experimental design for developing just-in-time adaptive interventions. Health Psychology. Vol 34(Suppl):1220-1228. doi: 10.1037/hea0000305. PubMed PMID: 26651463; PubMed Central PMCID: PMC4732571​

Liao,P., Klasnja, P., Tewari, P., Murphy, S. A. (2018). Sample size calculations for micro-randomized trials in mHealth. Statistics in Medicine. 2015 Dec 28. doi: 10.1002/sim.6847. PubMed PMID: 26707831


Boruvka, A., Almirall, D., Witkiewitz, K., Murphy, S. A. (in press) Assessing time-varying causal effect moderation in mobile health. Journal of the American Statistical Association.

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