The purpose of this evaluation was to understand the development, implementation, and impact of Project Exc-EL (Excellence for English Learners), a school-wide intervention focused on providing teacher professional development and training to better support English learners (ELs) in New York. Project Exc-EL focuses on training teachers to use data…

We study the usage of a self-guided online tutoring platform called Algebra Nation, which is widely by middle school and high school students who take the End-of-Course Algebra I exam at the end of the school year. This article aims to study how the platform contributes to increasing students' exam scores by examining users' logs over a three year…

Background: Youth of color from low-income urban communities are crucial participants in research, as their involvement can shape effective, culturally responsive interventions and policy to promote youth health and well-being. These young people, however, are an often-neglected research population, due in part to perceived challenges associated…

In this multi-year study, we taught English/Language Arts teachers of students with Learning Disabilities in middle school to incorporate 15 minutes of daily vocabulary activities with students in their intact special education English/Language Arts classes. During Year 1, teachers taught 48 words to their sixth grade students, who learned and…

The current paper explores how students' relationships with their teachers, parents, and friends might differentially impact their academic experience and success, by presenting and integrating the results of two related studies. In the first study, survey methods and structural equation modeling are used to describe the similar and different…

This article explores inequity in access to and provision of bus service across student sociodemographic groups and examines possible barriers to bus access and utilization. To so do, we use administrative data on New York City K-6 public school students from 2011-2017, including information on race/ethnicity, poverty status, distance from home to…

Design2Learn (D2L) is a NYC-based afterschool program aimed at increasing middle school students' interest, engagement, and achievement in science. Designed by ExpandED Schools, D2L centers around three core strategies: (1) collaborative teaching between an in-school science teacher and two afterschool educators; (2) curricular bridging, which…

Explicit signals of important relationships in expository texts can provide efficient processing instructions for readers with strategic knowledge about text structures. However, such signal words do not help readers without strategic knowledge about use of text structures and signal words. This study provided the first detailed investigation…

This study examines the impact of grade retention on behavioral outcomes under a comprehensive assessment-based student promotion policy in New York City. To isolate the causal effect of grade retention, we implement a fuzzy regression discontinuity (RD) design that exploits that grade retention is largely determined by whether a student scores…

A majority of the challenging words that adolescent readers encounter in school texts are morphologically complex and from the Latinate layer of English. For these words, bound roots carry important meaning, such as the relation between innovative and its bound root, nov, meaning "new." This study investigated the effects of instruction…

The purpose of this study was to apply a random item mixture nominal item response model (RIM-MixNRM) for investigating instruction effects. The host study design was a pre-test-and-post-test, school-based cluster randomized trial. A RIM-MixNRM was used to identify students' error patterns in mathematics at the pre-test and the post-test.…

This report presents the findings from interviews with principals about their schools' participation in the ASSISTments efficacy study on seventh-grade mathematics. The purpose of the interviews was to explore the following areas: To what extent schools had policies or expectations regarding homework practice and completion; To what extent schools…

This study tests a hypothesized learning progression for the concept of energy. It looks at 14 specific ideas under the categories of (i) Energy Forms and Transformations; (ii) Energy Transfer; (iii) Energy Dissipation and Degradation; and (iv) Energy Conservation. It then examines students' growth of understanding within each of these ideas at…

Many children fail to master fraction arithmetic even after years of instruction. A recent theory of fraction arithmetic (Braithwaite, Pyke, & Siegler, in press) hypothesized that this poor learning of fraction arithmetic procedures reflects poor conceptual understanding of them. To test this hypothesis, we performed three experiments…

This paper reports the outcomes of an experimental evaluation of "Direct Instruction Spoken English (DISE)," an English language curriculum that focuses on developing English speaking, listening, and comprehension skills in English Learners (ELs). Twenty-nine middle schools in three states were randomly assigned to teach "DISE"…