NotesFAQContact Us
Collection
Advanced
Search Tips
Publication Date
In 20250
Since 20240
Since 2021 (last 5 years)0
Since 2016 (last 10 years)2
Since 2006 (last 20 years)2
Source
Research Synthesis Methods2
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Showing all 2 results Save | Export
Peer reviewed Peer reviewed
Direct linkDirect link
Waffenschmidt, Siw; Navarro-Ruan, Tamara; Hobson, Nick; Hausner, Elke; Sauerland, Stefan; Haynes, R. Brian – Research Synthesis Methods, 2020
A retrospective analysis published by the German Institute for Quality and Efficiency in Health Care (IQWiG) in 2018 concluded that no filter for non-randomized studies (NRS) achieved sufficient sensitivity ([greater than or equal to] 92%), a precondition for comprehensive information retrieval. New NRS filters are therefore required, taking into…
Descriptors: Bibliographic Databases, Information Storage, Information Retrieval, Online Searching
Peer reviewed Peer reviewed
Direct linkDirect link
Konno, Ko; Pullin, Andrew S. – Research Synthesis Methods, 2020
Results of meta-analyses are potentially valuable for informing environmental policy and practice decisions. However, selective sampling of primary studies through searches exclusively using widely used bibliographic platform(s) could bias estimates of effect sizes. Such search strategies are common in environmental evidence reviews, and if risk…
Descriptors: Meta Analysis, Decision Making, Effect Size, Policy Formation