The purpose of this technical appendix is to share more detailed results and describe the sample and methods used in the research included inStudent achievement in 2021-22: Cause for hope and continued urgency.

New NWEA research finds signs of academic rebounding in the 2021-22 school year while simultaneously underscoring the sustained need for urgency in responding to the COVID-19 crisis.

School officials regularly use school-aggregate test scores to monitor school performance and make policy decisions. In this report, RAND researchers investigate one specific issue that may contaminate utilization of COVID-19–era school-aggregate scores and result in faulty comparisons with historical and other proximal aggregate scores: changes in school composition over time. To investigate this issue, they examine data from NWEA’s MAP Growth assessments, interim assessments used by states and districts during the 2020–2021 school year.

共同的19日大流行，再加上政治和社会动荡，严重破坏了大多数学生的生活和学习经历。它迫切需要解决长期存在的机会差距，并强调了提供资源来支持学生成就，社会情感学习以及身心健康的重要性。解决这些影响的行动紧迫性是有效的，但它还创造了一个嘈杂的环境，以了解最适合学生的潜在选择。现在比以往任何时候都重要的是，在扎实的研究中做出决策。

To what extent has the COVID-19 pandemic affected student achievement and growth in reading and math, and which students have been most affected? Using data from 6 million students in grades 3-8 who took MAP Growth assessments in reading and math, this brief examines how gains across the pandemic (fall 2019 to fall 2021) and student achievement in fall 2021 compare to pre-pandemic trends. This research provides insight to leaders working to support recovery.

The purpose of this technical appendix is to share more detailed results and to describe more fully the sample and methods used in the research included in the brief,Learning during COVID-19: An update on student achievement and growth at the start of the 2021-22 school year. We investigated two research questions:

1. 2021年秋季的学生成就与大流行前水平相比如何（即2019年秋季）？
2. 与规范增长期望相比，2019年秋季至2021年秋季之间的学术收益如何？

The American Rescue Plan provides $122 billion for COVID recovery in schools. With more than 40 state plans approved, how are districts collecting, monitoring, reporting and learning from the unprecedented interventions? What can districts do now to design and implement data collection processes that will shape collective learning? In this webinar, you will hear how district leaders and researchers are approaching this opportunity to alter life outcomes for generations.