Trends in International Mathematics and Science Study (TIMSS) is an international comparative study designed to measure trends in mathematics and science achievement at grades 4 and 8, as well as to collect information about educational contexts (such as students' schools, teachers, and homes) that may be related to student achievement. TIMSS has…

The growth of a STEM-focused economy has intensified the focus on developing kindergarten through grade 12 (K-12) students' STEM competencies and on the STEM practices of K-12 STEM teachers. The present study utilised secondary analysis of nationally-representative STEM teacher survey data to examine the ways in which middle grades teachers'…

This paper reports on students' experiences of describing and representing variation in hypothetical data. Fifty-six students (8-9 years-old) experienced collecting and working with quantitative data for two years as part of a STEM education project. The task described here was an end-of-year survey question, with three parts about a hypothetical…

While early research on full-day kindergarten (FDK) extolled its benefits for children's outcomes, later research demonstrated that children in half-day kindergarten (HDK) outperformed academically in the long-term. This study examined the longitudinal changes in kindergarten demographics and child outcomes by comparing data from the Early…

Background: Schools are important contexts for preventing sexual violence (SV) among adolescents. Evaluating whether programming is effective requires surveying youth about SV experiences. However, school communities often have concerns about asking students, particularly those in middle school, about these experiences. This study sought to…

This study examined the longitudinal changes in kindergarten demographics and child outcomes by comparing data from the Early Childhood Longitudinal Survey (ECLS-K) 1998 and 2011 cohorts. Results demonstrated that there were significant changes in kindergarten in general and with regard to FDK and HDK schedules between 1998 and 2011. These…

We assessed measurement invariance (MI) and cohort trends for five social and emotional learning (SEL) measures across four administrations (2013, 2016, 2019, 2022) of a statewide student survey including grades 5, 8, 9, and 11 (n = 626,082). The MI models were compared using conventional fit statistics and the root mean square error of…

In an ever-changing world, it is impossible for individuals to acquire all existing knowledge, just as it is challenging to predict which knowledge will be necessary for the future. The critical factor here is to concretize or make raw knowledge useful. Therefore, it has become imperative to develop students' abilities to analyze and utilize…

Engagement and academic achievement are generally correlated among elementary school students without learning disabilities (LDs). However, it is unclear if this pattern holds for students with LDs, who have lower achievement and engagement than their peers. This study examined whether links between achievement and student-reported behavioral…

Research suggests that current teachers' writing instruction does not prepare students for the demands of college and career writing, a problem that has persisted for decades. The purpose of this survey study of third- and fifth-grade teachers (N=159) across the U.S. was 1) to determine changes in teachers' frequency teaching writing using a set…

Research has begun to show that certain schoolwide characteristics--such as student-centered learning environments, leadership, and safety--can be important for improving student outcomes. In keeping with these insights, school improvement efforts around the country are becoming less narrowly focused on the performance of individual students and…

The Trends in International Mathematics and Science Study (TIMSS) is an international comparative study designed to measure trends in mathematics and science achievement at the fourth and eighth grades, as well as to collect information about educational contexts (such as students' schools, teachers, and homes) that may be related to student…

The Trends in International Mathematics and Science Study (TIMSS) is an international comparative study designed to measure trends in mathematics and science achievement at the fourth and eighth grades, as well as to collect information about educational contexts (such as students' schools, teachers, and homes) that may be related to student…

Research has begun to show that certain schoolwide characteristics--such as student-centered learning environments, leadership, and safety--can be important for improving student outcomes. In keeping with these insights, school improvement efforts around the country are becoming less narrowly focused on the performance of individual students and…

Purpose: The purpose of the study was to evaluate the implementation and impact of the IDEA Public Schools' Mathematics Curriculum Redesign (MCR) effort, funded by an Innovation and Research (EIR) grant. Methods: The study used a quasi-experimental matching design to examine the effect of MCR on student achievement outcomes. The study compared…