Background & Context: Accurate, reliable, and scalable measurement of classroom quality is critical to ensure that children benefit from early childhood programs. Early childhood classroom quality is most commonly measured using classroom observation tools serving multiple purposes including (1) teacher support (e.g., coaching, professional…

Early care and education (ECE) programs for children prior to kindergarten in California are provided through a mixed delivery system that includes licensed home- and center-based programs as well as school settings. The requirements, experience, and supports for educators vary widely across settings, depending more on funding sources and…