The relationship between persuasive technology principles, adherence and effect of web-Based interventions for mental health: A meta-analysis.

Background: Research has shown that web-based interventions concerning mental health can be effective, although there is a broad range in effect sizes. Why some interventions are more effective than others is not clear. Persuasive technology is one of the aspects which has a positive influence on changing attitude and/or behavior, and can contribute to better outcomes.