Guide to Patient and Family Engagement

Exhibit 15. Strength of Evidence for All Literature Reviewed

Type of Document Number
Systematic reviews
Systematic review of randomized controlled trials 1
Systematic review of descriptive studies (quantitative / qualitative) 15
Single evaluative studies
Randomized controlled trial 3
Nonrandomized controlled trial 3
Cohort / case-control study 1
Single site intervention (pre/post) / Case series study 10
Single site intervention (post only) 8
Single descriptive studies
Mixed methods study (qualitative / quantitative) 15
Quantitative study 26
Descriptive or qualitative study 37
Case study / description of implementation 65
Scholarly articles or reviews 42
Other (e.g., PowerPoint® presentations, workshop summaries) 10

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Page last reviewed July 2018
Page originally created September 2012
Internet Citation: Exhibit 15. Strength of Evidence for All Literature Reviewed. Content last reviewed July 2018. Agency for Healthcare Research and Quality, Rockville, MD.
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