This study addresses the effectiveness of "Everyday Mathematics" (EM), a widely used core mathematics curriculum that reflects over two decades of National Science Foundation (NSF)-sponsored research and development studies (Klein, 2007; National Research Council, 2004) and aligns well with recommended policies and practices by the…

Butterfly Phonics aims to improve the reading of struggling pupils through phonics instruction and a formal teaching style where pupils sit at desks in rows facing the teacher. It is based on a course book created by Irina Tyk, and was delivered in this evaluation by Real Action, a charity based in London. Real Action staff recruited and trained…

Young people from areas of socioeconomic disadvantage (SED) are more likely to present with language difficulties, particularly vocabulary difficulties. Studies have shown the effectiveness of vocabulary interventions for children with language impairment but not for adolescents from areas of SED. This article aims to establish the effectiveness…

The present study was part of a group randomized controlled trial in which 7th grade students were assigned to a yoga intervention or physical-education-as-usual. Sixteen students were randomly selected from the yoga condition to participate in one-on-one interviews. Qualitative analyses revealed 13 themes that were organized into two categories:…

We examined the relations between teachers' use of comments during book reading sessions in preschool classrooms and the vocabulary growth of children with low and moderately low language ability. Using data from a larger randomized controlled trial, we analyzed comments defined as utterances that give, explain, expand, or define. Comments were…

An emerging body of research examines language learning of young children from experiences with digital storybooks, but little is known about the ways in which specific components of digital storybooks, including interactive elements, may influence language learning. The purpose of the study was to examine the incidental word learning and story…

Using structural equation modeling, we examined the relationship of Hispanicism on recent substance use and whether Americanism moderated the effect in a sample of 1,141 Hispanic adolescents. The Bicultural Involvement Questionnaire (BIQ) was used to determine the degree of individual comfort in both Hispanic (Hispanicism) and American…

Teachers of elementary mathematics face multiple, convergent demands. These demands include supporting the growing population of English language learners (ELLs) and facilitating mathematical discussions across relevant curricular contexts. The authors used a comparative case study to examine how two teachers attempt to facilitate discussions…

In the 21st century, students have access to a plethora of information. As such, the skills required to access and effectively sort through this information (information literacy skills) become ever more important for success in both academic and non-academic settings. This study sought to assess the efficacy of two educational games designed to…

The purpose of this study was to evaluate the psychometric properties of a Perceived Benefits Scale, a Perceived Barriers Scale, and a Physical Activity Enjoyment Scale with data from a group randomized controlled trial (RCT) and a test-retest study with 1-week interval. In the group RCT at baseline and Week 17, 1,012 fifth- to eighth-grade girls…

In this study we investigated an editing strategy to develop effective proofreading skills (i.e., mechanics and substantive revisions) within electronic texts through an experimental pre- and posttest group design with random assignment. Fifteen college students with intellectual and developmental disabilities participated in this investigation.…

Individuals in marriages and long term committed relationships often turn to friends and family members for support and input about relationship problems. Given their lower use of mental health services, these confiding relationships may be particularly important to African Americans. The goal of this study was to evaluate an educational…

Evidence shows that financial aid increases college enrollment. For many students at low-cost community colleges, this aid is intended to cover more than tuition and fees; after those are paid, the remainder is paid out, or "refunded," to students to help with their living expenses while they are enrolled in school. Often, however, the…

Evidence shows that financial aid increases college enrollment. For many students at low-cost community colleges, this aid is intended to cover more than tuition and fees; after those are paid, the remainder is paid out, or "refunded," to students to help with their living expenses while they are enrolled in school. Often, however, the…

Background: Confounding caused by selection bias is often a key difference between non-randomized studies (NRS) and randomized controlled trials (RCTs) of interventions. Key methodological issues: In this third paper of the series, we consider issues relating to the inclusion of NRS in systematic reviews on the effects of interventions. We discuss…