The University of Washington Center for Educational Leadership (CEL) has released the 5D+ Calibration Tune-up tool. This new tool allows districts to support their ongoing rater reliability and is designed to be easily facilitated by district staff.
Developing and maintaining reliable evaluators is a key component to the success of any school district’s teacher evaluation system. Teachers and students benefit from principals and evaluators who are trained and certified to observe, analyze and rate instruction, before they ever step into a classroom to observe a teacher for the purpose of evaluation. Research has indicated that in-depth rater reliability training should happen annually and calibration tune-ups should happen monthly.