Cited by 264Digital Mental Health InterventionsMobile Health and mHealth ApplicationsBehavioral Health and Interventions

Just-in-the-Moment Adaptive Interventions (JITAI): A Meta-Analytical Review

Wang, Liyuan, Miller, Lynn Carol·2020·Health Communication

Abstract

A just-in-time, adaptive intervention (JITAI) is an emerging type of intervention that provides tailored support at the exact time of need. It does so using enabling new technologies (e.g., mobile phones, sensors) that capture the changing states of individuals. Extracting effect sizes of primary outcomes produced by 33 empirical studies that used JITAIs, we found moderate to large effect sizes of JITAI treatments compared to (1) waitlist-control conditions (k = 9), Hedges's g = 1.65 and (2) non-JITAI treatments (k = 21), g = 0.89. Also, participants of JITAI interventions showed significant changes (k = 13) in the positive direction (g = 0.79). A series of sensitivity tests suggested that those effects persist. Those effects also persist despite differences in the behaviors of interests (e.g., blood glucose control, recovering alcoholics), duration of the treatments, and participants' age. Two aspects of tailoring, namely: (1) tailoring to what (i.e., both people's previous behavioral patterns and their current need states; with these effects additive) and (2) approach to tailoring (i.e., both using a human agent and an algorithm to decide tailored feedback; with these effects additive), are significantly associated with greater JITAI efficacy.

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Crossref · 10.1080/10410236.2019.1652388

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Authors
Wang, L., & Miller, L. C.
Affiliations
University of Southern California (US)
Corresponding author
Wang, Liyuan
Venue
Health Communication
Published
2019-09-05
Volume
35
Issue
12
Pages
1531-1544
ISSN
  • 1041-0236 (ISSN-L)
  • 1532-7027
OpenAlex
W2971759879
Cited by
264
References
52
Citations by year
2026: 53 · 2025: 58 · 2024: 47 · 2023: 43 · 2022: 35 · 2021: 21 · 2020: 6 · 2019: 1
FWCI
17.84
Type
journal article
Language
en
Open access
closed
Locations
  • Health Communication (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Psychology › Applied Psychology › Digital Mental Health Interventions
  • Health Sciences › Health Professions › General Health Professions › Mobile Health and mHealth Applications
  • Social Sciences › Psychology › Applied Psychology › Behavioral Health and Interventions
Keywords
just-in-time adaptive interventions, personalized feedback, tailored support, mobile health, wearable sensors, treatment efficacy, effect size, need states, glycemic control, alcohol recovery, waitlist control
MeSH terms
Behavior Therapy, Humans, Cell Phone

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