Engagement and Retention: Measuring Breadth and Depth of Participant Use of an Online Intervention

Comparison of Trial Participants and Open Access Users of a Web-Based Physical Activity Intervention Regarding Adherence, Attrition, and Repeated Participation

(2010) Miriam Wanner et al.   JOURNAL OF MEDICAL INTERNET RESEARCH

A Randomized Clinical Trial Evaluating Online Interventions to Improve Fruit and Vegetable Consumption

(2009) Gwen L. Alexander et al.   AMERICAN JOURNAL OF PUBLIC HEALTH

Predictors of Adherence by Adolescents to a Cognitive Behavior Therapy Website in School and Community-Based Settings

(2009) Alison L Neil et al.   JOURNAL OF MEDICAL INTERNET RESEARCH

Recruitment to a Randomized Web-Based Nutritional Intervention Trial: Characteristics of Participants Compared to Non-Participants

(2009) Melanie A Stopponi et al.   JOURNAL OF MEDICAL INTERNET RESEARCH

Methodological Challenges in Online Trials

(2009) Elizabeth Murray et al.   JOURNAL OF MEDICAL INTERNET RESEARCH

A conceptual framework for understanding and improving adolescents' exposure to Internet-delivered interventions

(2009) R. Crutzen et al.   HEALTH PROMOTION INTERNATIONAL

Effect of Incentives and Mailing Features on Online Health Program Enrollment

(2008) Gwen L. Alexander et al.   AMERICAN JOURNAL OF PREVENTIVE MEDICINE

The Role of Engagement in a Tailored Web-Based Smoking Cessation Program: Randomized Controlled Trial

(2008) Victor Strecher et al.   JOURNAL OF MEDICAL INTERNET RESEARCH