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Do participants' preferences for mode of delivery (text, video, or both) influence the effectiveness of a web-based physical activity intervention?
journal contributionposted on 06.12.2017, 00:00 by Corneel VandelanotteCorneel Vandelanotte, Mitchell DuncanMitchell Duncan, R Plotnikoff, William MummeryWilliam Mummery
Background: In randomized controlled trials, participants cannot choose their preferred intervention delivery mode and thus might refuse to participate or not engage fully if assigned to a nonpreferred group. This might underestimate the true effectiveness of behavior-change interventions. Objective: To examine whether receiving interventions either matched or mismatched with participants’ preferred delivery mode would influence effectiveness of a Web-based physical activity intervention.