Trends in International Mathematics and Science Study (TIMSS) and Progress in International Reading Literacy Study (PIRLS)

Trends in International Mathematics and Science Study (TIMSS) from the National Center for Education Statistics and Progress in International Reading Literacy Study (PIRLS) from the National Center for Education Statistics (NCES). Includes all data formats available.<br><br>"Since 1995, TIMSS has monitored trends in mathematics and science achievement every four years, at the fourth and eighth grades. TIMSS 2023 is the eighth such assessment, providing nearly three decades of trend data. TIMSS 2023 completes the transition to a fully digital administration, concluding a process that began in TIMSS 2019, and features new and interactive item formats.TIMSS Advanced studies achievement in advanced mathematics and physics for students in their final year of secondary school. TIMSS Advanced was conducted in 1995, 2008, and 2015." <br><br>"PIRLS has monitored trends in reading achievement at the fourth grade every five years since 2001. PIRLS 2026, the sixth assessment cycle of PIRLS, will provide policymakers and researchers with data on 25 years of trends in student achievement in reading literacy.PIRLS 2026 completes the transition to a fully digital assessment, concluding a process that began with PIRLS 2021. ePIRLS, an innovative assessment of online informational reading, was introduced in 2016 as an optional component and is now integrated into the digital assessment."<br><br>***Microdata: Yes Level of Analysis: Country; Individuals - Schools Variables Present: Yes File Layout: .sav; .exp Codebook: Yes Methods: No Weights (with appropriate documentation): Yes Publications: No Aggregate Data: No