Monitoring unplanned sexual health curricula adaptations: Using results to improve fidelity and support implementation.

Maintaining fidelity to an evidence-based curriculum is important, yet educators may need to adapt to unexpected situations or particular contexts. The purpose of this study is to identify the reasons for unplanned adaptations during implementation of an evidence-based sexual health education program in California. Evaluators reviewed fidelity checklists from the implementation of 571 cohorts for activities with reported unplanned adaptations.