How consistent (i.e., dependable) are the research review methods used by the Campbell Collaboration, Cochrane Collaboration, and What Works Clearinghouse regarding absolute decisions for classifying primary studies as ‘evidence-based’ or ‘not evidence-based’? What are the identifiable sources of consistency and/or inconsistency (i.e., error) that arise from these research review methods?#ResearchonEvaluation #2010Conference #research-reviews