The "Pre-K Classroom Assessment Scoring System" (CLASS) is commonly used to measure three domains of teacher-child interactional quality in preschool classrooms (Emotional Support, Classroom Organization, and Instructional Support). However, there is considerable debate regarding the validity of its three-domain factor structure and the…

Coaching is an increasingly used professional development approach involving ongoing, individualized teacher-coach exchanges hypothesized to drive immediate changes in teachers' practices with students. Examining this hypothesis, the present study quantifies marginal changes after individual coaching cycles in a set of commonly considered,…