This research brief examines the data on holding back five-year-olds from starting kindergarten – a practice known as redshirting. Using national data from over three million kindergartners from NWEA’s MAP Growth K-2 assessment, this study explores redshirting trends between fall 2017 and 2025. It also follows a kindergarten cohort (2021-22) through the third grade, examining whether there were academic advantages for redshirted students.

This is the technical appendix for the research brief titled, “Should kindergartners be redshirted?” which examines the data on holding back five-year-olds from starting kindergarten – a practice known as redshirting.

This is a family facing fact sheet about the data on the practice of delaying kindergarten, known as redshirting. Schools can use this fact sheet with families considering redshirting or who just want more information.

This NWEA research brief examines how access to early Algebra – a key gateway to advanced high school math, STEM majors, and higher lifetime earnings – remains highly inequitable across the United States. Using NWEA data from 162,000 eighth-grade students across 22 states, the study looks at both whether schools offer Algebra by 8th grade and how students are placed when it is offered. The findings point to significant gaps tied to school poverty levels, geography, and race/ethnicity.

This is the technical appendix to the “Unequal Access to 8th-Grade Algebra: How School Offerings and Placement Practices Limit Opportunity” research brief, which examines how access to early Algebra remains highly inequitable across the United States.

This is the accompanying technical appendix to the research study, “Boys regain the advantage in middle school STEM skills: Post-COVID trends in gender achievement gaps,” leveraging data from three national assessments, as well as enrollment in Algebra, to examine trends in gender gaps in 8th grade STEM skills over the course of the pandemic.

The research study used a robust set of data from three national assessments to examine trends in gender gaps in 8th grade STEM skills over the course of the pandemic.