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…

Improving achievement in Science, Technology, Engineering, and Mathematics (STEM) is essential for elevating individual success and solving societal challenges. Yet national and international assessments paint a poor picture of students' STEM competencies (NAEP, 2019; OECD, 2018). An untapped avenue to improve STEM education lies in developing…

Inspired by the pioneering work of Dr. G. R. Tucker and colleagues on French Immersion in Canada, later known as the St. Lambert experiment (Lambert & Tucker, "Journal of Educational Psychology," 65(2), 141-159, 1972), language immersion education also proliferated in the United States in the last decades. Research in the U.S.…

The purpose of this non-experimental, quantitative study was to determine the effectiveness of one-to-one device initiatives in a secondary school setting. Not only was this study focused on the academic achievement of all students, but also the impact of such initiatives on the academic achievement in the free and reduced lunch population. The…

This quantitative causal comparative study examined whether there were differences in American Indian student's test scores in Mathematics and English Language Arts between five schools in a school district in southwest United States. Archival data using students' individual test scores, including student demographics as grade level, gender, and…

The impact of the New Tech Network (NTN) design on several academic measures was tested on ninth graders in four schools in one state located in the Southeastern United States. Research questions explored the extent to which achievement test scores, dual credits earned, and dropout rates differed between ninth grade students in high fidelity NTN…

Two studies investigated the effect of departmentalized instruction on ELA and math achievement among 5th grade students in a large, urban school district. In 84% of the findings from the two studies combined, students in departmentalized classrooms produced significantly higher scores in ELA and mathematics, relative to students in generalized…

Middle school transitions are increasingly required, despite documented negative effects on general education students (GENs). We explore if and how the move to middle school differentially affects students with disabilities (SWDs), a large and low-performing group of students. Using an instrumental variables strategy and NYC data on nine cohorts…

This study offers a novel approach to evaluating the predictors of first-year grade point average (FYGPA) in college by using multiple imputation and dominance analysis to compare high school GPA (HSGPA), ACT® test score, and demographic factors. Unlike previous research that typically relied on single regression models, this study reveals more…

Principals are the second-largest school-based contributor to K-12 students' academic progress. However, there is little research evaluating whether efforts to develop principals' skills improve school effectiveness. We conducted randomized controlled trial studies of the impacts of a professional development program called the Executive…

Background: Reading is a vital skill, key to school success, necessary for employment, and essential for functioning in everyday life. Many attempts to increase literacy have focused on schools, yet "out of school" factors have a substantial impact on student learning (Clabaugh, 2008). One non-instructional factor that may be part of…

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…

Childhood obesity is a prevalent health condition, the effects of which extend to mental health, social relationships, educational performance, and long-term physical health conditions. The present study focused on an optimized student support intervention that functions in predominantly high-poverty urban locations, which recognizes students as…

The purpose of this study is to explore the relationship between school counselor ratios, and Tennessee Comprehensive Assessment Program [TCAP] English Language Arts and Mathematics scores. This study will also consider school level characteristics and student level characteristics in one large, public, urban school district in the southeastern…

The Lyceum, implemented by Guilford County Schools (GCS), was an arts education program designed to promote arts integration for all GCS students and exposure to Entertainment Arts & Technology for students at Penn-Griffin School for the Arts. The Lyceum impact evaluation used a quasi-experimental design (QED) to examine the effect of…