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A Guide to Evidence-Based Group Work$
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Mark J. Macgowan

Print publication date: 2008

Print ISBN-13: 9780195183450

Published to Oxford Scholarship Online: January 2009

DOI: 10.1093/acprof:oso/9780195183450.001.0001

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Undertake a Critical Review of the Evidence: Evaluate Its Rigor, Impact, and Applicability

Undertake a Critical Review of the Evidence: Evaluate Its Rigor, Impact, and Applicability

(p.78) 4 Undertake a Critical Review of the Evidence: Evaluate Its Rigor, Impact, and Applicability
A Guide to Evidence-Based Group Work

Mark J. Macgowan

Oxford University Press

This chapter describes the third stage of evidence-based group work. It offers guidance and tools for critically evaluating the group-based evidence collected from the search completed in stage two. The chapter is divided into two sections. The first provides a discussion of the critical review system, which includes eight guides for evaluating evidence from quantitative (grouped and single-case designs) and qualitative studies, authorities, multiple studies/reports, literature reviews (systematic and non-systematic), and group-based measures. Each guide is divided into three areas in which group workers make an assessment, yielding an overall determination of the evidence's quality (yielding best available evidence). The first is the evidence's research merit, or its validity or rigor. The second is the evidence's impact; that is, how powerful and in what direction are the findings. The third is the evidence's applicability, its practice relevance and appropriateness. The second section of the chapter includes case examples illustrating how the guides are used.

Keywords:   critical review, guides, quality of evidence, best available evidence, research merit, impact, clinical significance, applicability, empirical guides, empirically supported treatments

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