Jennifer L. Dykstra

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BACKGROUND The risk for skin cancer is increased among older males and outdoor workers who have high levels of ultraviolet (UV) exposure. PURPOSE This study was designed to examine the long-term efficacy of UV photography interventions on male outdoor workers, the potential mediators of its impact, and the efficacy of UV photography and skin cancer vs.(More)
This paper examines cognitive antecedents of non-smoking among adolescents who reported smoking less than 1-2 times a week, and reported non-smoking intentions and willingness, in the framework of the Prototype/Willingness model. Two waves of data were obtained from a nation-wide sample of 760 Norwegian adolescents who responded to a school-based survey on(More)
OBJECTIVE: To examine substance-related attitudes and behaviors among college students across an academic semester. DESIGN: Pre-post quasi-experimental survey design. SETTING: A large Midwestern University. METHOD: Surveys were completed by 299 undergraduates enrolled in three courses: drugs and behavior, abnormal psychology, and normal personality(More)
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