Mummery, W Kerry

Do participants' preferences for mode of delivery (text, video, or both) influence the effectiveness of a Web-based physical activity intervention?

Publication Date: 
Mar 01, 2012

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.

Using smartphone technology to monitor physical activity in the 10,000 Steps program: a matched case-control trial.

Publication Date: 
Apr 23, 2012

BACKGROUND: Website-delivered physical activity interventions are successful in producing short-term behavior change. However, problems with engagement and retention of participants in these programs prevent long-term behavior change.