• Publications
  • Influence
The association between school-based physical activity, including physical education, and academic performance: a systematic review of the literature.
OBJECTIVE The purpose of this review is to synthesize the scientific literature that has examined the association between school-based physical activity (including physical education) and academicExpand
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Safer Choices: Reducing Teen Pregnancy, HIV, and STDs
Objectives. This study evaluated the long-term effectiveness of Safer Choices, a theory-based, multi-component educational program designed to reduce sexual risk behaviors and increase protectiveExpand
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Validity of scales measuring the psychosocial determinants of HIV/STD-related risk behavior in adolescents.
We examined the content, construct and concurrent validity of scales to assess beliefs and self-efficacy related to adolescents' sexual risk behavior. We addressed content validity in the scaleExpand
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The "Safer Choices" intervention: its impact on the sexual behaviors of different subgroups of high school students.
PURPOSE To measure the relative impact of a school-based human immunodeficiency virus (HIV)-, sexually transmitted disease (STD)-, and pregnancy-prevention intervention on sexual risk-takingExpand
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All4You! A randomized trial of an HIV, other STDs, and pregnancy prevention intervention for alternative school students.
This study evaluated All4You!, a theoretically based curriculum designed to reduce sexual risk behaviors associated with HIV, other STDs, and unintended pregnancy among students in alternativeExpand
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Psychosocial predictors of delay of first sexual intercourse by adolescents.
This investigation predicted adolescents' delay of intercourse onset from attitudes, social norms, and self-efficacy about refraining from sexual intercourse. Age, gender, ethnicity, and parentalExpand
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Short-term impact of safer choices: a multicomponent, school-based HIV, other STD, and pregnancy prevention program.
This study evaluated the effectiveness of the first year of Safer Choices, a theoretically based, multicomponent HIV, STD, and pregnancy prevention program for high school youth. The study featured aExpand
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Older boyfriends and girlfriends increase risk of sexual initiation in young adolescents.
PURPOSE To explore the prevalence and impact of older boyfriends or girlfriends on sexual behavior in sixth graders (mean age 11.5 years). METHODS Students in 19 ethnically diverse middle schoolsExpand
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Draw the line/respect the line: a randomized trial of a middle school intervention to reduce sexual risk behaviors.
OBJECTIVES This study evaluated the long-term effectiveness of Draw the Line/Respect the Line, a theoretically based curriculum designed to reduce sexual risk behaviors among middle schoolExpand
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Schoolwide Effects of a Multicomponent HIV, STD, and Pregnancy Prevention Program for High School Students
Few studies have tested schoolwide interventions to reduce sexual risk behavior, and none have demonstrated significant schoolwide effects. This study evaluates the schoolwide effects of SaferExpand
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