The development of the teacher clarity short inventory (TCSI) to measure clear teaching in the classroom

This study presents the Teacher Clarity Short Inventory (TCSI) as an alternative to existing measures of teacher clarity. Though existing scales measure both the clarity of content and classroom processes, they are disproportionate in length when compared to common instructional measures, such as measures of immediacy, student state motivation, and student affect. Analyses revealed a 10 item scale with an acceptable factor structure, acceptable reliability and validity. Furthermore, the instrument measures both the clarity of instructional content and instructional processes.