The present study evaluated the effectiveness of a non-randomized summer reading program offered by a school district meeting or exceeding all National Summer Learning Project recommendations. The district had 10 years of experience delivering the program to Grades 1-5 students with or at risk of reading disabilities. Voluntary participation had…

The purpose of this study was to analyze the impact on student performance due to participation in the Catapult Learning Intervention program in the Mathematics and Reading services offered in a religious non-public school system in the Northeastern United States from grades K-2. Scaled scores from the NWEA MAP assessments administered at the…

In this quasi-experimental study, we examined STEMscopes program impacts on science achievement in Longhorn ISD. The report specifically analyzed STEMscopes impacts on STAAR and MAP Growth scores. The present study used a school-level quasi-experimental design, where 8 STEMscopes schools were selected for inclusion and 8 comparison schools (using…

This paper presents evidence of the effects of dual language immersion (DLI) programs on the academic outcomes of students in elementary grades. Leveraging enrollment lotteries from four cohorts of DLI applicants across 10 oversubscribed programs, analyses estimate the intent-to-treat effect of access to bilingual education on reading and math…

This mixed-methods, cross-cohort efficacy study evaluated "Just Right Reader's Classroom Libraries" first-grade students across six schools in a diverse Texas district. The Classroom Libraries consisted of decodable literacy resources appropriately matched to instructional needs and were available in English to all students and in…

Zearn Math is a popular software platform for K-8 mathematics learning, designed to enable all students to successfully access grade-level content. RAND researchers collaborated with Zearn, the product's developer, to design this evaluation. Then RAND conducted the study independently, randomly assigning 64 schools in an urban Texas district to…

Many school districts have turned to summer school as a strategy for addressing persistent declines in student achievement after COVID-19. We examine the impact of 2023 summer programs on academic recovery across 400,000 students in eight large U.S. districts. Using value-added models, we find modest but significant improvements in student math…