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Arlington ISD reports beginning-of-year screeners and warns about MAP renorming effects
Summary
District leaders reported beginning-of-year literacy and math screeners and explained how the 2025 NWEA MAP renorming changes percentile interpretation of identical RIT scores; officials outlined targeted coaching, prescriptive lessons and contracted supports to address areas of need, including a noted drop in entering third-grade math.
Arlington ISD presented results of beginning-of-year literacy and mathematics screeners on Nov. 6 and warned trustees about interpreting scores following a national renorming of the NWEA MAP assessment.
Dr. Stephen Wirtz explained that MAP’s 2025 norms shift the percentile interpretation of the same RIT score compared with 2020 norms: "If you walk in with a 240 RIT score now, it looks like you're sitting in the 60th percentile," he said, meaning percentile…
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