Publications & Resources

Measuring Fidelity of Implementation—Methodological and Conceptual Issues and Challenges

Jan 2012

Ellen Osmundson, Joan Herman, Cathy Ringstaff, Yunyun Dai and Mike Timms

A central challenge in efficacy studies centers on the issue of “fidelity of implementation,” that is, the extent to which participants use the curriculum specified by curriculum developers. In this study, we describe and discuss a fidelity of implementation model using multiple methods and instruments to compare two versions of a science curriculum and embedded assessment system. We present results from our validation study and discuss the challenges in determining the extent to which teachers use a curriculum as designed. We focus as well on the practical curriculum implementation issues amidst the needs and perspectives from different stakeholders.

Osmundson, E., Herman, J., Ringstaff, C., Dai, Y., & Timms, M. (2012). Measuring fidelity of implementation: Methodological and conceptual issues and challenges (CRESST Report 811). Los Angeles: University of California, Los Angeles, National Center for Research on Evaluation, Standards, and Student Testing (CRESST).