This study is a randomized controlled trial testing the effectiveness of a program provided in Colorado high schools by the Center for Relationship Education based in Denver, Colorado. 14 schools are randomly assigned to either provide the Real Essentials curriculum as part of health or similar classes or teach these classes as usual. The study design includes surveys administered pre-program, post-program and at 6-month and 12-month follow ups. Primary study outcomes are increased knowledge of healthy relationships and reduced risky sexual behavior.

Inclusion Criteria:

• Must be enrolled in designated classes at 14 participating high schools schools in Colorado

Exclusion Criteria:

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