We evaluate the effects of grade retention on students' academic, attendance, and disciplinary outcomes in Indiana. Using a regression discontinuity design, we show that third-grade retention increases achievement in English Language Arts (ELA) and math immediately and substantially, and the effects persist into middle school. We find no evidence…

Legislative frameworks in England have been designed to support children with special educational needs and disabilities (SEND). Despite efforts from policy makers, achievement gaps persist between students with SEND and their typically developing peers. This study examines the extent and persistence of academic achievement gaps between students…

Excellence gaps are differences in advanced education outcomes among student groups. This study replicates and extends an earlier study on the prevalence and magnitude of excellence gaps based on student sex and immigrant status using Grade 8 TIMSS data. Data were included for the 12 countries that have participated in each TIMSS administration…

Scholars paid attention to the relationship between homework frequency and academic performance, however, fewer of them noticed that the relationship might be nonlinear and may vary across different types of homework. This study aims at exploring the nonlinear relationship between the different types of homework frequency and mathematical academic…

Student mobility that occurs within a school year may be especially disruptive for student outcomes, yet little is known regarding the predictors of within-year mobility. In particular, research has yet to comprehensively examine the role of student achievement in predicting within-year student mobility. Thus, we sought to understand this link by…

The COVID-19 pandemic caused widespread disruptions to education, with school closures affecting over one billion children. These closures, aimed at reducing virus transmission, resulted in significant learning losses, particularly in mathematics and science. Using data from TIMSS 2023, which assesses fourth and eighth-grade achievements across 71…

This study investigated how domain specificity of academic motivation related to the connection between instructional clarity and academic achievement in science and mathematics. It focused on three aspects of domain-specific academic motivation--self-concept, intrinsic value, and utility value--drawing from the Expectancy-Value Theory model. The…

The purpose of this study is to estimate the impact of Race to the Top (RTTT) on test scores, both overall and in terms of narrowing demographic achievement gaps--a central focus in the original RTTT applications. We draw on student-level NAEP data in reading and mathematics for fourth and eighth graders from 1996 to 2019. An event-study…

This quantitative, causal comparative study analyzed the effect of participation in a blended learning program has on the STAAR Mathematics and Reading Language Arts assessments for fifth grade students in a large, urban school district in North Texas. The study evaluated the performance of fifth graders on the STAAR assessment in mathematics…

The purpose of this study was to compare virtual school students' learning outcomes with traditional school students' learning outcomes in Texas. The research design was a quantitative study using a retrospective causal-comparative design. The researcher used archival state assessment data to compare the learning outcomes of K-12 virtual school…

Cambodian primary schools shifted to remote teaching for extended periods during the 2020-21 COVID-19 pandemic. The results from national learning assessments of grade 6 students show that overall averages in Khmer language and mathematics in 2021 were 0.30-0.75 standard deviations below 2016 levels. There is some evidence that learning gaps…

Summer learning loss is a perennial concern for educators and parents alike. However, researchers have recently questioned whether summer learning loss is just a statistical artifact driven by how achievement is measured across the school year. In this study, we empirically investigated a plausible critique of summer learning loss research, namely…

This study focused on the relationships between teacher characteristics and students' mathematics achievement in EU countries, including Hungary, Italy, Lithuania, Malta, Slovenia, Sweden, and Turkey, which are the only EU countries participated in TIMSS 2015 at the eighth-grade level. The data consisted of the sample of 31,969 eighth-grade…

We investigated two research questions: which students are more likely to respond inconsistently to mixed-worded questionnaire scales, and which country samples have larger shares of inconsistent respondents? We defined an inconsistent response as strongly agreeing or disagreeing with both positively and negatively worded items of the same scale.…

State assessment test scores in English language arts (ELA) and mathematics had continued to decline in a southern state in the United States over the last few years. The purpose of this quantitative study was to examine the difference in middle school ELA and mathematics test scores between students receiving instruction in virtual and…