This article reports the first meta‐analysis of the literature on protection motivation theory (Rogers, 1975, 1983; Rogers & Prentice‐Dunn, 1997), a model of disease prevention and health promotion that has generated research for over two decades. The literature review included 65 relevant studies (N= approximately 30,000) that represented over 20 health issues. The mean overall effect size (d+= 0.52) was of moderate magnitude. In general, increases in threat severity, threat vulnerability, response efficacy, and self‐efficacy facilitated adaptive intentions or behaviors. Conversely, decreases in maladaptive response rewards and adaptive response costs increased adaptive intentions or behaviors. This held true whether the measures were based on intentions or behaviors, and suggests that PMT components may be useful for individual and community interventions.

This experiment compared the effectiveness of appearance‐based messages focusing on the benefits of tanning and the efficacy of preventive measures on students' intentions to protect themselves against sun‐induced skin damage. Subjects who were high or low on a dispositional measure of appearance concern responded to 1 of 4 essays providing either high or low benefits information, and high or low efficacy information. Overall, subjects low in appearance concern expressed greater intentions to take precautionary measures than did those high in appearance concern. Additionally, the low benefits of tanning message produced greater intentions to take precautions than did the high benefits message. The benefits results suggest 1 mechanism through which sun protection behaviors may be encouraged.

Thirty-one community-residing older adults age 60 or over either received 16 sessions of individual cognitive psychotherapy (Beck, Rush, Shaw, & Emery, 1979) or read Feeling Good (Bums, 1980) for bibliotherapy. Posttreatment comparisons with the delayed-treatment control indicated that both treatments were superior to a delayed-treatment control. Individual psychotherapy was superior to bibliotherapy at posttreatment on self-reported depression, but there were no differences on clinician-rated depression. Further, bibliotherapy participants continued to improve after posttreatment. and there were no differences between treatments at 3-month follow-up. Results suggest that bibliotherapy and that individual psychotherapy are both viable treatment options for depression in older adults.

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of BR have been proposed to support this challenging process. Bayesian analysis, with its formal utilization of prior information and repeated updates based on accumulating knowledge, naturally supports decision theory. In this talk, we discuss the rationale for adopting a Bayesian framework when evaluating BR for decisionmaking purposes by providing an overview of recent applications of Bayesian statistics to structured quantitative BR assessment. Furthermore, we outline specific gaps and opportunities in the current practice of BR evaluation that support the case for greater application of statistical decision theory and Bayesian analysis.