Background: Key elements of instructional quality include the teacher's ability to immediately react in domain-specific classroom situations. Such skills -- defined as action-related skills -- can only be validly assessed using authentic representations of real-life teaching practice. However, research has not yet explained how teachers apply…

Teaching performance can be assessed validly only if the assessment involves an appropriate, authentic representation of real-life teaching practices. Different skills interact in coordinating teachers' actions in different classroom situations. Based on the evidence-centered design model, we developed a technology-based assessment framework that…