The purpose of this technical appendix is to share more detailed results and to describe more fully the sample and methods used in the research included in the brief, "The Widening Achievement Divide during COVID-19." The authors investigated two main research questions in this brief: (1) To what degree have students' reading and math…

With advances in learning technologies, new pedagogical models are being developed to improve students' learning performance. One notable model is the flipped classroom, which has attracted the attention of many researchers, particularly in K-12 education. However, research on effective approaches for managing the flipped classroom model to…

Given the significant role that academic self-concept plays in students' learning, understanding the psychological processes involved in its formation continues to be an important focus of enquiry. There is strong empirical support for two major models of academic self-concept (ASC) formation: the big-fish-little-pond (BFLP) model and the…

Project Explore targeted minority students in grades six through eight who attended 28 Houston Independent School District (HISD) middle schools during the 2019-2020 academic year. In 2019-2020, a total of 2,095 students were accepted for participation in the Project Explore program, and an additional 715 students were waitlisted for program…

The purpose of this evaluation was to examine the impact of i-Ready Personalized Instruction on math achievement, as measured by SBA scores. We compared "striving learner" students who were assigned to use i-Ready Personalized Instruction (Treatment students) and "striving learner" students assigned to only receive i-Ready…

The purpose of this study was to study the impact on student performance due to participation in the Catapult Learning Intervention program in the Mathematics and Reading services offered in a religious non-public school system in the Northeastern United States from grades 6-8. Student scaled scores from the NWEA MAP assessments administered at…

The goal of the current study was to investigate the role of academic enablers on the association between symptoms of inattention and hyperactivity/impulsivity and academic achievement. There were 395 3rd through 5th grade students (48% boys). Students self-rated behavioral symptoms and classroom teachers completed ratings of academic enablers.…

General cognitive and specific numerical abilities that underlay mathematical performance have been heavily investigated among hearing students; however, the inquiry has rarely been applied to students who are deaf or hard-of-hearing (d/Dhh). We examined whether general cognitive abilities (i.e. nonverbal IQ, processing speed, and spatial ability)…

Employing a mixed-methods research design, this study examines how a newly designed dual language program in an urban school advances language proficiencies among Spanish-English bilingual 6th graders in relation to content area achievement as measured on NYS standardized tests in English Language Arts and Math. It further investigates how…

Using a dataset that includes over 17 million students from across all 50 states, we estimate the causal impact of making structural transitions into middle school (in grades 4, 5, 6, or 7) on student math and reading achievement trajectories. This dataset provides an ideal opportunity to engage in the valuable scientific practice of conducting…

Introduction: Increasing evidence has shown that student mobility is negatively correlated with individual students' and schools' academic performance (Hanushek, Kain, & Rivkin, 2004; Lara, Mizala, & Repetto, 2011; Sun & Pan, 2014). However, the negative impact may be due to the switching behavior or it could be only a side effect of…

This "ex post facto," causal-comparative quantitative study assessed the math and English language arts (ELA) 7th to 8th-grade academic growth among Black students enrolled in Philadelphia's black-operated public charter schools, non-black operated charter schools, and traditional public schools while controlling for 6th-grade exam…

The present study was conducted to compare the performances of high-achieving sixth grade students on written computation, symbolic representation, and pictorial representation tests. The study enrolled 107 sixth-grade students in three schools. Data were analyzed by using the Kruskal Wallis and Mann Whitney-U Tests and interviews were conducted…

Although educational games have been used for a considerable time, their true potential for enhancing achievement and motivation is still being explored. We argue in this paper that we may get closer to realizing this potential if the theoretical underpinning of educational games is improved. We developed a simple interactive math game based on…

A pretest-training-posttest design assessed whether training to improve spatial skills also improved mathematics performance in elementary-aged children. First grade students (mean age = 7 years, n = 134) and sixth grade students (mean age = 12 years, n = 124) completed training in 1 of 2 spatial skills-spatial visualization or form…