The number of students opting out of standardized tests has grown in recent years. This phenomenon poses a potential threat to our ability to accurately measure student achievement in schools and districts. This brief documents the extent to which opting out is observed in the CORE districts and models how higher opt-out levels could affect various accountability measures. More students opting out could significantly impact some accountability measures in use in California, but the CORE districts’ growth measure is largely unaffected, as it reports the impact of schools on individual students’...
School value-added models are increasingly used to measure schools’ contributions to student success. At the same time, policymakers and researchers agree that schools should support students’ social-emotional learning (SEL) as well as academic development. Yet, the evidence regarding whether schools can influence SEL and whether statistical growth models can appropriately measure this influence is limited. Recent work shows meaningful differences across schools in changes in SEL scores by grade, but whether these differences represent the effects of schools is still unclear. The current paper...