This article examines the impact of within-class age differences on educational outcomes, using students' birth months in Madrid's primary schools as a natural experiment. Employing a regression discontinuity design, we analyze third-grade students to investigate these age-related effects. Additionally, we explore whether early childhood education…

Transitional Kindergarten (TK) is a relatively new model of early childhood education, with little evidence on whether and how it affects children's development. This study provides new evidence using data from Michigan, which has the nation's second-largest TK program. Using survey data (N=171) from administrators in 2021-2022, the paper…

Early literacy skills are critical to the educational outcomes of young students. Accordingly, 19 states have early literacy policies that require grade retention for underperforming readers at the end of third grade. However, there is mixed evidence about retention's effectiveness and concerns that retention may disproportionately impact…

This study is the first to empirically examine how school districts allocate resources in response to capital investment revenue from statewide penny sales taxes (called SAVE funds), and whether SAVE funds affect student outputs (i.e., educational achievement). We found evidence that school districts do not use SAVE funds to increase capital…

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 early years from birth to age 8 are a crucial period for children's learning and development. High-quality early childhood education and care (ECEC) and continuity from ECEC into school provide children with a strong foundation for lifelong learning. Understanding how language and cognition skills develop during this period of a child's life…

The "Effects of Reclassifying English Learner Students on Student Achievement in New Mexico" study examined being reclassified as fluent English proficient and achievement in English language arts and math in the first year after student reclassification. The study focused on achievement among English learner students in 2014/15-2018/19…

This is the technical index for the research brief "Education's Long COVID: 2022-23 Achievement Data Reveal Stalled Progress toward Pandemic 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…

New research, using data from 7 million students in grades 3-8 in 25,000 schools who took MAP Growth reading and mathematics assessments between 2020-21 and fall 2022, continues NWEA's ongoing research agenda examining how the COVID-19 pandemic has affected student achievement in reading and math. At the start of the 2022-23 school year, we…

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, "Progress toward Pandemic Recovery: Continued Signs of Rebounding Achievement at the Start of the 2022-23 School Year" (ED627355). The two main research questions…

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." The goal of this brief is to summarize student achievement…

This digest provides descriptive, aggregated statistics related to the experiences of six cohorts of kindergartners who were enrolled in Baltimore City Public Schools (City Schools) from the 2014-15 school year through the 2019-20 school year which is the most recent available. Multiple indicators of kindergarten readiness and outcomes, including…

The onset of the COVID-19 pandemic in the spring of 2020 was marked by a transition to remote learning in Illinois schools and nationwide. The following school year, schools and families faced difficult decisions about how and when to return to in-person learning. School leaders, parents and caregivers, and students considered how to balance…

In this paper, we use NWEA MAP test data to examine variation in students' achievement and growth during the pandemic across multiple dimensions. Consistent with prior evidence, we find that students' test scores in fall 2021, on average, were substantially below historic averages. Moreover, the average scores of students of color, students…

The Houston Independent School District (HISD) currently offers free, full-day prekindergarten programs to all eligible students within the district's attendance boundaries. This evaluation compares the academic achievement of third-grade students who were previously enrolled in HISD prekindergarten programs during the 2011-2012 school year to…