Answered By: Mary Kaye Hooker
Last Updated: Sep 25, 2018     Views: 262

The levels of evidence are listed in the Week 1 lesson. Review that lesson to understand what types of studies/articles meet the levels of evidence defined in that lesson.

Understanding the levels of evidence, then search CINAHL Complete, Medline Complete or PubMed using the Clinical Queries limiter. Using this limiter provides a pre-determined search strategy to your subject terms.

To get Quantitative Studies, use the limiters of therapy, prognosis, or etiology to the search for the intervention. However, if the topic lends itself to qualitative research study (an example might be the effect of mentoring or some other phenomenological study), then to get Quantitative research use the Patient Safety or Cost or Economic Clinical Queries. This will return studies on the cost benefit or patient outcomes from the intervention.

To get Qualitative Studies, use the Qualitative Clinical Queries limiter.

The files/documents attached below will assist with understanding what Clinical Queries are and how to find the limiter in the CINAHL Complete, Medline Complete and PubMed databases.

See Links and Files below which provide image examples of evaluation tables as well as links to journal articles that may help you to understand the leveling and grading process of evaluating evidence.