A theory-based video intervention to enhance communication and engagement in online health communities: two experiments.

ABSTRACT:

Background

Online communities and social networking sites have great potential for supporting health behavior change. However, interventions vary greatly in participants' engagement rates and, consequently, their effectiveness. Theory-based interventions in real-world contexts are needed to further increase engagement and effectiveness.

Methods

We experimentally tested whether a video intervention teaching Self-Determination-Theory-based communication strategies increases need-supportive communication strategy use over one week (Study 1, N = 76) and perceived need support, engagement, and goal attainment in a behavior change intervention supported by a forum-based online community (Study 2, N = 537). In Study 2, participants chose a goal (increasing either frui

SUBMITTER: Kilb M 

PROVIDER: S-EPMC8843193 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature