How accurate are teacher forecast grades?

Basic in 2012, I invested a lot of time researching forecasting pupil performance. Specifically CATs and FFT. In 2015, as part of our Improvement Strategy we wanted to feedback to Heads of Department on their prediction accuracy – on a “optimism-pessimism” scale and designed an assessment tool. Very simplistically, as you can see, variance of…
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31 Mar ’20 0