AFT MA President Beth Kontos Criticizes DESE for Continuing Biased and Inaccurate School Rating System

DESE has proposed suspending certain school accountability measures for School Year 2021-22, citing unreliable MCAS data from School Year 2020-21, when MCAS was administered during the COVID-19 pandemic. Yet, DESE plans to continue in 2022 with the heart of its accountability regime: the calculation of the school percentile metric, which is used to rank schools against each other based primarily on MCAS scores. DESE invited public comment on this proposal, and President Kontos’ letter was in response to that invitation.
“What troubles us greatly…is your stated intent to move forward with the school percentile metric—a metric that research shows to be biased and deeply flawed,” Kontos writes in her letter. “The disruption to MCAS data caused by the pandemic only exacerbates the problems with this metric.”
Kontos’ letter cites recent research, including from a Nobel Prize-winning MIT economist, showing that the school percentile metric and its underlying MCAS achievement measures are biased and inaccurate measures of school quality. In other words, the supposed inferiority of low-rated schools serving predominantly students of color is due to inaccuracy in the measures (standardized test achievement levels) and is not due to lower-quality education.