Background/Context: For decades, practitioners, policymakers, and researchers have sought to improve the quality of early childhood education (ECE) to foster equitable experiences for young children. States are increasingly investing in evidence-based professional development programs for teachers, including practice-based coaching and early…

A quantifiable measure of teachers' intervention fidelity when delivering curriculum-based interventions allows researchers to interpret the effectiveness of the curricula under scrutiny. Fidelity measures, however, must accurately represent the critical components of an intervention to confirm that the intervention was delivered as intended and…