As the number of publicly funded early childhood education (ECE) programs increases, policymakers will need empirical evidence to justify the taxpayer investment. Such justification will require a stronger understanding of the essential components of an ECE program's design, as well as solid evidence on which components, or constellations of…

The What Works Clearinghouse (WWC) evaluates research studies that look at the effectiveness of education programs, products, practices, and policies, which the WWC calls "interventions." Many studies of education interventions make claims about impacts on students' outcomes. Some studies have designs that enable readers to make causal…

The What Works Clearinghouse (WWC) Standards Briefs explain the rules the WWC uses to evaluate the quality of studies for practitioners, researchers, and policymakers. Attrition (loss of sample) occurs when individuals initially included in a study are not included in the final study analysis. Attrition is a common issue in education research and…

Adult education's mission is a critical one. It seeks to provide the large and diverse population of adults who lack basic skills, a high school credential, or English language skills with the competencies they need to be productive workers, family members, and citizens. Federally funded adult education serves learners in three types of programs:…

Title II of the Workforce Innovation and Opportunity Act of 2014 directs the federal government to conduct a national assessment of adult education, including activities to understand the extent to which adult education strategies positively affect learners. A systematic review of the research on the effectiveness of particular strategies in adult…

Few questions in public education discourse benefit as much from research-based evidence as the question of class size--the pursuit of the ideal number of students that should be co-located for any particular period of instruction. But for policymakers, research on class size can be an embarrassment of riches, and much of the research appears to…

This report focuses on the findings from a literature review of what is known about the effectiveness of intergenerational practice, conducted by the National Foundation for Educational Research (NFER) for the Local Government Association (LGA). The overall purpose of this study was to carry out a literature review of what is known about the…

This research brief draws on seminal research and evaluation studies to address two primary questions: (a) Does participation in after school programs make a difference, and, if so (b) what conditions appear to be necessary to achieve positive results? The brief concludes with a set of questions to spur conversation about the evolving role of…

Reports of international studies of student achievement often receive public attention worldwide. However, this attention overly focuses on the national rankings of average student performance. To move beyond the simplistic comparison of national mean scores, this study investigates (a) country differences in the measures of variability as well as…

This important new work from Rebell and Wolff, authors of the groundbreaking volume "Moving Every Child Ahead: From NCLB Hype to Meaningful Educational Opportunity", brings together the nation's leading researchers and thinkers in the field of educational equity to provide a range of provocative critiques that go well beyond what has…

Dramatic changes in the higher education landscape and the recent recession have intensified the challenges students face in postsecondary enrollment and completion. In response, some states, communities, and institutions have developed "postsecondary opportunity programs (POPs)"--comprehensive college access and success programs…

Inverness Research is an independent national educational research group based in California. Its mission is to help projects assess the quality and efficacy of their efforts, and to help funders better understand the design of their initiatives and the value of their investments. Inverness Research has served by contract with CSTP (Center for…

This guide is designed to help districts and schools evaluate reform efforts related to the American Recovery and Reinvestment Act (ARRA), including School Improvement Grants. It includes practical, how-to tips for conducting program evaluations, whether one takes a "do-it-yourself" approach or seeks outside assistance to evaluate reform…

"Scale Up in Education, Volume 1: Ideas in Principle" examines the challenges of "scaling up" from a multidisciplinary perspective. It brings together contributions from disciplines that routinely take promising innovations to scale, including medicine, business, engineering, computing, and education. Together the contributors explore appropriate…

As a comprehensive child development program, Head Start provides education, health, nutrition, and social services to children and their families through direct services or referrals. Nearly four decades of research establish that Head Start delivers the intended services and improves the lives and development of the children and families it…