We examined the development of numerical magnitude representations of fractions and decimals from fourth to 12th grade. In Experiment 1, we assessed the rational number magnitude knowledge of 200 Chinese fourth, fifth, sixth, eighth, and 12th graders (92 girls and 108 boys) by presenting fraction and decimal magnitude comparison tasks as well as…

This study aimed to extend the literature by examining how bystander intervention (i.e. when a witness to a bullying episodes does something to address the situation) varies with respect to the type of bystander intervention (i.e. direct intervention, emotional intervention, involving an adult, ignore) across victim status (friend, unknown),…

The purpose of this study was to investigate the interplays among the critical thinking disposition, cognitive flexibility, math anxiety and math achievement with structural equation modeling and determine the degree of the mediating effect of math anxiety in primary, middle and high schools. Within the scope, we also focused on the predicting…

The National Assessment of Educational Progress (NAEP) is the largest continuing and nationally representative assessment of what students in public and private schools know and can do in various subjects. First administered in 1969, NAEP collects and reports information on student trends and performance and compares the achievement of students in…

The International Association for the Evaluation of Educational Achievement (IEA) Research for Education series represents a further effort by IEA to capitalize on it's unique datasets, so as to provide powerful information for policymakers and researchers. Each report focuses on a specific topic and is produced by a dedicated team of leading…

Principals (policy makers) have debated the progress in U.S. student performance for a half century or more. Informing these conversations, survey agents have administered seven million psychometrically linked tests in math and reading in 160 waves to national probability samples of selected cohorts born between 1954 and 2007. This study is the…

The COVID-19 pandemic and resulting stay-at-home orders created a need for assessing elementary, middle, and high school students' experienced stressors associated with the coronavirus situation. In collaboration with a school district wanting information about their students' well-being during the pandemic school shut-down, the current study…

An open classroom climate, one where diverse opinions and discussion of social and political issues are welcome, promotes civic development among youth and fosters critical consciousness. Critical consciousness, defined as the capacity to recognize societal inequity along with the motivation and action taken to challenge such inequity and promote…

A multisite cluster-randomized trial (by school) was conducted to examine the effects of a combined mental health literacy and dialectical behavior therapy skills program implemented by teachers on three protective factors related to social and emotional well-being. The sample of eight schools that were randomly assigned to intervention included…

This report looks at student achievement levels in Arkansas school districts disaggregated by district poverty and by the district's performance relative to other districts. We estimated district performance statistics by subject and grade level (4, 8, and 11-12) for longitudinal student cohorts, using statistical models that adjusted for district…

Gender gaps in the development of mathematical and scientific literacy have important implications for the general public's understanding of scientific issues and for the underrepresentation of women in science, technology, engineering, and math. We subjected data from the National Assessment of Educational Progress to a meta-analysis to examine…

Stereotype threat has been proposed as 1 potential explanation for the gender difference in standardized mathematics test performance among high-performing students. At present, it is not entirely clear how susceptibility to stereotype threat develops, as empirical evidence for stereotype threat effects across the school years is inconsistent. In…

The study reported here investigated the impacts of participation in 4-H on young people's interest and participation in science. Survey data were collected from relatively large and ethnically diverse samples of elementary and high school-aged students in California. Results indicated that although elementary-grade 4-H members are not more…

For almost a century, researchers have studied creative imagination, most typically that of children. This article reports on a study of the development of creative imagination of Chinese youths and its relation to the educational environment. Data consisted of 4,162 students from grades 4 through 12. Findings showed that students' creative…

This study explores the trajectory of suicidal ideation in childhood and adolescence and identifies its strong predictors. Secondary data obtained from two nationally representative cohorts of South Korean youth were longitudinally analyzed using frequencies, percentages, and discrete time survival analysis. This study revealed an increase in the…