A randomized experiment that measures the impact of a social policy in a sample of the population reveals whether the policy will work on average with universal application. An experiment that includes only the subset of the population that volunteers for the intervention generates narrower "proof-of-concept" evidence of whether the…

Funded grant projects all involve some form of evaluation, and Advanced Technological Education (ATE) grants are no exception. Program evaluation serves as a critical component not only for evaluating if a project has met its intended and desired outcomes, but the evaluation process is also a central feature of the grant application itself.…

Heterogeneity between and within people necessitates the need for sequential personalized interventions to optimize individual outcomes. Personalized or adaptive interventions (AIs) are relevant for diseases and maladaptive behavioral trajectories when one intervention is not curative and success of a subsequent intervention may depend on…

What Works Clearinghouse (WWC) quick reviews (QRs) are designed to provide education practitioners and policymakers with timely, preliminary objective assessments of the quality of the research evidence from recently released research papers and reports that have received coverage in the media. These reviews focus primarily on studies of the…

The last major review of the achievement outcomes of comprehensive school reform (CSR) models was conducted in 2003. Despite the growing evidence base supporting CSR, the program was discontinued by the federal government in 2007. Now, six years after the 2003 meta-analysis, the study's lead author, Geoffrey Borman, revisits the results and…

This article reports on the results of a study undertaken by the U.S. Department of Education on the impact of the Reading First program, which offer little insight into which parts of the program are worth saving and which need revamping. The study found that the $6 billion spent on the program has helped students with basic decoding but not with…

The National Center for Supported eText (NCSeT) has a research agenda designed to investigate the effects of supported electronic text on the ability of students with disabilities to read and learn from text. This article introduces four studies conducted by research teams who have collaborated with NCSeT to implement that agenda. It describes…

A major tenet of both the Individuals with Disabilities Education Act and the No Child Left Behind Act is the identification and use of evidence-based practices, or those instructional techniques shown by research as most likely to improve student outcomes meaningfully. However, much confusion exists regarding the meaning and potential…

Using evidence-based practices, or those instructional techniques shown by research to improve student outcomes meaningfully, increases the performance of students with disabilities and should therefore be a priority for special educators. But how does a practice come to be considered evidence based? The unique characteristics of group…

A core component of the No Child Left Behind Act (NCLB, 2001) is the provision of free after-school tutoring services, labeled "supplemental educational services" (SES), to eligible students. Importantly, an explicit NCLB requirement makes each state responsible for evaluating individual SES providers with regard to effectiveness in…

In response to recent trends and legislation, the concept of implementing evidence-based practices has become a critical component of contemporary schooling. It is important that teachers and families of students with disabilities understand the role that qualitative research plays in determining whether a practice is in fact evidence based.…

Research in the field of special education often incorporates single-subject designs to investigate the effectiveness of educational practices for students with disabilities. As such, it is important that educators and educational professionals understand the characteristics of single-subject research methodologies and how those characteristics…

A description of the background, objectives, design, and intended products of the Vocational Education Equity Study, a federal effort, conducted by the American Institutes for Research, intended to assess sex discrimination and sex stereotyping in vocational education at all educational levels. (SJL)

Volume I of the First Annual Report of the National Day Care Study (NDCS) funded by the Office of Child Development presents an overview of the NDCS study, the background of federal involvement in day care, the day care policy issues being addressed, an overview of the study design and phases, uses and limits of study findings, and the results of…

Volume II of the First Annual Report of the National Day Care Study (NDCS) funded by the Office of Child Development presents the research design for Phase II of the study and includes a detailed technical discussion of the study's analytical and methodological issues. The NDCS, being conducted over a period of three years, is designed to answer…