In this article, we trace the development of the Campbell Collaboration and its renewed efforts to build a world library of accurate, synthesized evidence to inform policy and practice and improve human well-being worldwide. Campbell systematic reviews and related evidence synthesis products provide unbiased summaries of entire bodies of empirical…

In this article, we respond to Wolery's critique of the What Works Clearinghouse (WWC) pilot "Standards," which were developed by the current authors. We do so to provide additional information and clarify some points previously summarized in this journal. We also respond to several concerns raised by Maggin, Briesch, and Chafouleas…

The Council of Australian Governments (COAG) has made a range of commitments to improve the lives of Indigenous Australians and in particular provide for a better future for Indigenous children. These commitments have re-focused the efforts of everyone working for a better future for Australia's Indigenous people. The Closing the Gap Clearinghouse…

Objectives: The purpose of this article is to describe several evidence-based clearinghouses focused on social work and related intervention outcomes, placing them in the context of how such clearinghouses can contribute to research dissemination to foster effective, evidence-based practice. Method: The study employed an analysis of data provided…

A large body of literature documents the central importance of fidelity of program implementation in creating an internally valid research design and considering such fidelity in judgments of research quality. The What Works Clearinghouse (WWC) provides web-based summary ratings of educational innovations and is the only rating group that is…