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Physician Assistant

Evidence-based Practice Databases

EBP Filters in PubMed

The following Article Types will allow you to limit to evidence based practice:

Clinical Study:

includes: Clinical Trial, Controlled Clinical Trial

Randomized Clinical Trial, Observational Study


Evaluation Study


Systematic Reviews

Comparative Study  Meta-Analysis
Multicenter Study
 Validation Study

Evaluation Study = studies determining the effectiveness or utility of processes, personnel, and equipment

Validation Study = research using processes by which the reliability and relevance of a procedure for a specific purpose are established

Remember, Systematic Reviews (Article Type) will also include Literature Reviews in the results. They are NOT the same. Literature Reviews are NOT EBP. You will need to evaluate the article to determine the type of Review.

Practice Guidelines: most are EBP, but some are still opinion-based. You will need to review the guideline to ensure it is EBP.

Qualitative Research in PubMed:

  • Use the following search terms to capture the various types of qualitative studies: Qualitative Research, Grounded Theory, focus groups, phenomenology, ethnography, nursing methodology research, narration, narrative, interviews as topic, "thematic analysis"

Epidemologic Research in PubMed:

  • Use Epidemiologic Studies as a search term for studies that examine associations, hypothesized causal relations. They are usually concerned with identifying or measuring the effects of risk factors or exposures. Includes: Cohort Studies, Longitudinal Studies, Prospective/Retrospective Studies, Case Control Studies, Cross Sectional Studies.

Resources for Appraising/ Critiquing a Research Study

Qualitative Research Aids

Evidence Based Practice

How to Write a Literature Review

Doing a Literature Review in Health and Social Care

Aveyard, H. (2010; 2nd ed.)
Unlimited access ebook

Doing a Literature Review in Nursing, Health and Social Care

Cronin, P., Coughlan, M., & Ryan, F. (2013)
Call number: RT 81.5 .C68 2013
Print book

Doing Your Literature Review: traditional and systematic techniques

Jesson, J., Matheson, L., & Lacey, F. (2011)
Call number: H 62 .J44 2011
Print book

Health Sciences Literature Review Made Easy : the matrix method

Garrard, J. (2006)
Call number: R 118.6 .G37 2007
Print book

Research Books: Performing, Critiquing, and Understanding

Database Help