The findings contribute to the understanding of psychological mechanisms in health behavior change. They also point to the particular role of mediator variables in the context of sun protection behaviors, which may have implications for designing skin cancer preventive interventions.
This study compares a motivational skin cancer prevention approach with a volitional planning and self-efficacy intervention to enhance regular sunscreen use. A randomized controlled trial (RCT) was conducted with 205 women (mean age 25 years) in three groups: motivational; volitional; and control. Sunscreen use, action planning, coping planning and coping self-efficacy were assessed at three points in time. The volitional intervention improved sunscreen use. Coping planning emerged as the only mediator between the intervention and sunscreen use at Time 3. Findings point to the role played by coping planning as an ingredient of sun protection interventions.
To promote sun safety by implementing different plans for sunscreen use, different psychological interventions are compared. Self-regulatory strategies such as action planning and coping planning are seen as proximal predictors of actual behavior. The study compares a pure planning intervention with a broader resource communication and examines differential effects at different stages of change. A sun safety online study was designed with two intervention groups (resource communication versus planning) and one control group at two assessment points, 2 weeks apart. Participants (N = 292) were grouped post hoc according to their stage of change, resulting in 51 pre-intenders (no intention to use sunscreen), 102 intenders (high intention but no regular use of sunscreen) and 139 actors (sunscreen use on a regular basis). No overall treatment effects on planning, but an interaction between time, stage and intervention emerged. The resource communication was more effective for pre-intenders, whereas the planning intervention proved more effective for intenders. A planning treatment was more beneficial in motivated individuals, whereas a broader approach was better for unmotivated ones. Findings highlight the potential that stage-matched interventions might have in the context of sun safety promotion.
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