Publications by authors named "Steven M Giles"

Purpose: To be effective, evidence-based programs should be delivered as prescribed. This suggests that adaptations that deviate from intervention goals may limit a program's effectiveness. This study examines the impact that number and quality of adaptations have on substance use outcomes.

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We examine whether teachers' communicator style relates to student engagement, teacher-student relationships, student perceptions of teacher immediacy, as well as observer ratings of delivery skills during the implementation of All Stars, a middle school-based substance use prevention program. Data from 48 teachers who taught All Stars up to 3 consecutive years and their respective seventh-grade students (n = 2,240) indicate that having an authoritative communication style is negatively related to student engagement with the curriculum and the quality of the student-teacher relationship, while having an expressive communicator style improves teachers' immediacy to student needs. Adaptations made by a subsample of teachers (n = 27) reveal that those who were more expressive asked students more questions, used more motivational techniques, and introduced more new concepts than authoritarian teachers.

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The purpose of this study was to extend the literature in both substance use implementation and persuasive health communication by examining the extent to which students' need for cognition and impulsive decision-making moderated the relationship between teachers' classroom communication behavior and program outcomes in an evidence-based middle school substance use prevention curriculum. Participants included 48 teachers and their respective 7th grade students who participated in a randomized trial testing the effectiveness of personal coaching as a means to improve the quality with which teachers implemented the All Stars curriculum. Need for cognition and impulse decision-making were both associated with positive changes in lifestyle incongruence and commitments to not use substances for students whose teachers displayed greater interactive teaching.

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Little is known about the trajectories over time of classroom teachers' fidelity to drug prevention curricula. Using the "Concerns-Based Adoption Model" (C-BAM) as a theoretical framework, we hypothesized that teachers' fidelity would improve with repetition. Participants comprised 23 middle school teachers who videotaped their administration of three entire iterations of the All Stars curriculum.

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Objective: This study examined the association between restricting calories on intended drinking days and drunkenness frequency and alcohol-related consequences among college students.

Participants: Participants included a random sample of 4,271 undergraduate college students from 10 universities.

Methods: Students completed a Web-based survey regarding their high-risk drinking behaviors and calorie restriction on intended drinking days.

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Research-based substance use prevention curricula typically yield small effects when implemented by school teachers under real-world conditions. Using a randomized controlled trial, the authors examined whether expert coaching improves the effectiveness of the All Stars prevention curriculum. Although a positive effect on students' cigarette use was noted, this finding may be attributed to marked baseline differences on this variable across the intervention and control groups.

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There is now ample evidence that teachers tend to make substantial modifications to both the prescribed content and methods of the curricula they administer, and that such modifications are likely to attenuate curricula effects. We examine the fidelity with which teachers implement "Protecting You, Protecting Me," an underage alcohol use prevention curriculum. Findings suggest that while teachers attempted to implement most sections of a lesson, the lessons taught were consistently--and often extensively--adapted.

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The ease with which prevention programs can be delivered may impact whether or not they are implemented as designed. This paper presents a website with enhancements designed to make delivery of the All Stars substance use prevention program easier. Administrative tasks, such as completing paperwork associated with program delivery were automated using web technology.

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Prevention research continues to focus on school-based substance use programs aimed at adolescents. These programs are designed to reduce substance use and risk behavior by targeting key mediators, such as normative beliefs, which in turn reduce substance use. All Stars is a newly developed program that was recently evaluated in a randomized field trial in 14 middle schools in Lexington and Louisville, Kentucky.

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Norm setting has been shown to be a crucial element of effective drug education. The purpose of this study was to examine the degree to which a videotape describing concepts and methods for establishing positive norms would enhance standard training. Participants included 35 teachers and 64 health education students who were randomly assigned to the standard training condition or the video-enhanced training.

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