Date of Original Version
Objective: Predictive and external validity was studied among cluster profiles for sun protection behavior within stages from Transtheoretical Model of behavior change using follow-up data.
Methods: Data from participants in a home-based expert system were analyzed. Longitudinal patterns of clusters on the precontemplation, contemplation, and preparation stages of change were assessed. Differences between clusters on membership in action/maintenance stages and scores on the Sun Protection Behavior Scale (SPBS) were measured at 12 and 24 months after intervention.
Results: Differences between clusters on stage progression and on scores from the SPBS were found at 12 and 24 months after intervention at all stages.
Discussion: Predictive and external validity of sun protection subtypes was established using sun protection variables after a stage-matched intervention. Results provide information to improve interventions for sun protection.
Psychology, Health & Medicine
Santiago-Rivas, M., Velicer, W. F., Redding, C. A., Prochaska, J. O., & Paiva, A. L. (2013). Outcomes of cluster profiles within stages of change for sun protection behavior. Psychology, Health & Medicine, 18(4), 471-481. https://doi.org/10.1080/13548506.2012.748206
Available at: https://doi.org/10.1080/13548506.2012.748206