The College and Career Readiness Expansion project was a five-year, federally funded effort to implement early college strategies in comprehensive high schools. This report presents the results from a quasi-experimental impact study of the project and a mixed methods examination of its implementation. Results showed that the program increased the…

Successful implementation of evidence-based educational practices at scale is of great importance but has presented significant challenges. In this article, the authors address the following questions: How does the level of on-site technical assistance affect student outcomes? Do teachers' fidelity of treatment implementation and their perceptions…