The recent turn toward core practices and practice-based teacher education has been accompanied by a growing literature on the definitions, pedagogies to teach, and assessments of core practices. Despite these developments, the field lacks core practices performance assessments designed to be used across course sections, courses, and subjects.…

This research looks closely at claims that ratemyprofessors.com creates a valid measure of teaching effectiveness because student responses are consistent with a learning model. While some evidence for this contention was found in three datasets taken from the site, the majority of the evidence indicates that the instrument is biassed by a halo…