Background: Many education systems internationally expect schools to participate in continuous instructional improvement programmes. One tool used within these processes is the structured, rubric-based classroom observation, focused on the evaluation of teaching. Such observations are a common feature of formative evaluation systems, teacher…

Scores from observational measures of teaching have recently been put to many uses within school systems, including communicating a standard of practice and providing teacher feedback, identifying teachers for professional development, monitoring system equity, and making employment decisions. In each of these uses, observation scores are…