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ERIC Number: ED503772
Record Type: Non-Journal
Publication Date: 2008-Dec
Pages: 66
Abstractor: ERIC
Reference Count: 25
Procedures and Version 2 Standards Handbook. What Works Clearinghouse
What Works Clearinghouse
This handbook describes the structure and processes that the What Works Clearinghouse (WWC) uses for its reviews, presenting in one place all the standards the WWC currently uses to assess research. The handbook will be revised as new standards are developed and major new features are finalized. A distinguishing feature of the WWC is that it does not directly assess programs, policies, or practices, but reviews and reports on the findings from existing research that meets particular standards. The handbook details the components of the review process, including defining the topic area, identifying all potential research papers that fit the topic area, screening in the eligible papers, defining and prioritizing interventions within the topic area, reviewing the studies of the intervention, producing intervention reports, and proceeding through several rounds of quality assurance before finalizing reports. Review topic areas are identified through a collaborative process combining input from policymakers, researchers, and experts in the field. The topic areas are organized around key student outcomes, with special attention given to academic outcomes, though topic areas might also be organized around non-academic outcomes. Topic areas currently under review include Beginning Reading, Dropout Prevention, Early Childhood Education, Elementary School Math, English Language Learners, and Middle School Math. Seven appendices are included: (1) Assessing Attrition Areas; (2) Effect Size Computations; (3) Clustering Correction of the Statistical Significance of Effects Estimated with Mismatched Analysis; (4) Benjamini-Hochberg Correction of the Statistical Significance of Effects Estimated with Multiple Comparisons; (5) Intervention Rating Scheme; (6) Computation of the Improvement Index; and (7) Extent of Evidence Categorization. An index is included. (Contains 14 footnotes, 1 figure and 4 tables.)
What Works Clearinghouse. P.O. Box 2393, Princeton, NJ 08543-2393. Tel: 866-503-6114; e-mail:; Web site:
Publication Type: Guides - Non-Classroom
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: What Works Clearinghouse (ED)
IES Cited: ED544765; ED560752; ED546480