The What Works Clearinghouse (WWC) Standards Briefs explain the rules the WWC uses to evaluate the quality of studies for practitioners, researchers, and policymakers. This brief explains what baseline equivalence is and why it matters. As part of the WWC review process for certain types of studies, reviewers assess whether the intervention group…

This guide is addressed to policy officials, program providers, and researchers who are seeking to: (1) identify and implement social programs backed by valid evidence of effectiveness; or (2) sponsor or conduct an evaluation to determine whether a program is effective. The guide provides a brief overview of which studies can produce valid…

Prevalence estimates of psychiatric disorders in 10-year-old rural Norwegian children were based on responses to symptom checklists distributed to parents and teachers. Parents' index showed highest validity and was used as a basis for prevalence estimates. Properties of the index were shown to be sample specific. (Author/AS)

Quality measures were originally developed for research aimed at describing the settings that children spend time in and identifying the characteristics of these environments that contribute to children's development. They were also developed to guide improvements in practice. Increasingly, however, measures of quality are being used for further…

The Parent Education Profile (PEP) is an instrument used by family literacy programs to rate parents' support for children's literacy development. This article uses Critical Discourse Analysis to examine how the PEP constructs the ideal parent, the text's underlying assumptions about parenting and education, and its ideological effects. The…

This article is the third contribution to a research methods series dedicated to getting good results from survey research. In this series, "good results" is a stenographic term used to define surveys that yield accurate and meaningful information that decision makers can use with confidence when conducting program evaluation and policy assessment…

These two reports describe the research, analysis, and results of the second phase of a three-phase research study sponsored by the Standards and Training for Corrections Program (STC) of the California Board of Corrections. The validation report consists of seven chapters. Following an introductory chapter that explains the rationale for the…

This paper addresses questions raised about the validity of facilitated communication with autistic individuals and others having severe disabilities and offers examples from the authors' program to support the validity of facilitated communication. Published studies showing a high rate of unfounded claims of abuse under facilitated communication…

This review of 50 social validation research studies involving persons with handicaps concludes that social validation procedures are an appropriate and important component of applied behavior analysis. Discussed are methodological issues, social importance of effects, social significance of goals, social appropriateness of procedures, and…

Discusses aspects of quantitative experimental design to help college science faculty investigate college-level science instruction. (PR)

In response to a mandate from the California State Legislature, the California Board of Corrections conducted a three-phase research study in preparation for the revision and standardization of the current state standards for hiring and training corrections personnel. The primary focus of the second phase of the project was on the development and…

In response to a mandate from the California State Legislature, the California Board of Corrections conducted a three-phase research study in preparation for the revision and standardization of the current state standards for hiring and training corrections personnel. The primary focus of the second phase of the project was on the development and…

This booklet is intended to help curriculum development personnel select an appropriate task list verification technique. The first sections of the guide introduce the concept of verification of task lists, provide a rationale for it, and define various terms connected with verification. The following four sections describe and make a case for…

This book is a guide to categorizing, measuring, testing, and assessing aspects of language, and is intended for language teachers, speech therapists and other language-related practitioners, and researchers, in conjunction with other resources on research methods and statistics. The first part is a discussion of basic terminology and the varied…

Some issues in the design of classroom research on second language teaching are discussed, with the intention of helping the researcher avoid conceptual pitfalls that may cripple the study later in the process. This begins with an examination of concerns in sampling, including definition of a population to be studied, alternative sampling…