We study a decade of achievement gaps for fifth-, eighth-, and 10th-grade students in Norway using administrative population data. Norway is a wealthy and egalitarian country with a homogeneous educational system, yet achievement gaps between students at the 90th and 10th percentiles of parental income and between students whose parents have at…

We used the Stanford education data archive (SEDA) data to examine the heterogeneity among urban school districts in the United States. The SEDA 2.1 includes data sets on students' mathematics (Math) and English language arts (ELA) achievement from 2008 to 2014 at the district level. Growth mixture modeling was used to uncover the underlying…

This study carefully examined compensating, mediating, and moderating effects of positive school climate on the relationship of socioeconomic status (SES) and achievement in a nationally representative sample of ethnocultural minority Arabic speaking students in Israel (N = 21,873). Positive school climate was predominantly influential in schools…

A growing body of research shows that students benefit when they demographically match their teachers. However, little is known about how matching affects social-emotional development. We use student-fixed effects to exploit changes over time in the proportion of teachers within a school grade who demographically match a student to estimate…

Public school board members are charged with the responsibility and accountability to provide governance-level advocacy for equity and excellence in public education. This qualitative study examined the perceptions of school board members in three K--8 school districts in the midwestern part of the United States regarding the 50+ year Race-Based…

This study examined the impact of knowledge-building curricula on raising reading achievement for students from high-poverty backgrounds. The overall purpose of the study was to contribute to our understanding of curricula that may be effective in closing achievement gaps for students from lower socioeconomic backgrounds compared to…

Research, conducted universally over two decades, suggests there is a significant disproportionality of achievement of housing displaced and highly mobile students (HDHM) compared to students who are in stable housing. HDHM students not only present with learning gaps but exhibit greater challenges in math. The purpose of this critical case study…

This study focused on a problem of practice at Mystic River School (MRS), a kindergarten through eighth grade school in an urban district in New England. Schoolwide diagnostic data showed a significant gap between multilingual learners (MLs) and their native English speaking peers in literacy. An analysis of this data, interviews with staff and…

In this brief we examine how variability in students' math and reading test scores changed across the pandemic, including whether increased dispersion was concentrated at one part of the test score distribution. Using reading and math assessment data from a sample of 8 million students in grades 3-8 in 24,000 public schools who took MAP Growth…

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, "The Widening Achievement Divide during COVID-19." The authors investigated two main research questions in this brief: (1) To what degree have students' reading and math…

The purpose of this technical appendix is to share detailed results and more fully describe the sample and methods used to produce the research brief, "COVID's Impact on Science Achievement: Trends from 2019 through 2024. We investigated three main research questions in this brief: 1) How did science achievement in 2021 and 2024 compare to…

The purpose of this study is to investigate the progress being made to close the current achievement gap in Kentucky. Guiding the study is the following research question: Which districts are closing racial and socioeconomic achievement gaps at rates that exceed expectations? The authors assess districts' progress in closing racial and…

This research brief examines the continuing impact of the COVID-19 pandemic on student achievement and progress toward academic recovery. Using data from 6.7 million U.S. public school students currently in grades 3-8, the study examined academic gains in the 2022-23 school year relative to pre-pandemic years. It also tracked the gap in…

Knowledge about one's own cognitive processes is the basis for the monitoring and regulation of learning processes for effective reading comprehension. Taking verbal cognitive ability into account, the present study aimed to examine the developmental trajectories of reading comprehension and declarative metacognitive knowledge and their…

This brief continues ongoing research by NWEA® examining the degree to which the COVID-19 pandemic, and its associated school closures, influenced student learning. Prior research focused on math and reading and found that the pandemic's negative impact steadily accumulated during the 2020-2021 school year, with significant disparities in…