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Why does a RIT score change between the Fall and Winter MAP administration?

Question asked by Lisa Murray on Apr 25, 2018
Latest reply on May 2, 2018 by Danielle Kerns

My question has to do with the Projected Growth on the Achievement and Growth Projection Report. We took the test in the fall and made our SLO data based on the score and the projected RIT growth. After the winter administration, we noticed there was a change in the projected RIT. It is not a big difference but in most cases, the projected RIT score is one less. For example, a student whose projected RIT was 213, now needs a 212. With my class, all students need one less, but a colleague has some students who need a higher RIT score. Can you please help us figure out why this would happen? Thank you.