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NURS 3374 - Research and Evidence-Based Practice: Use the Databases

Boolean Operators

Combine your search terms using Boolean operators to get results.

What are Boolean Operators?

Boolean operators connect your search words together to either narrow or broaden your results in a database (like PubMed) or search engine (like Google Scholar).

Boolean operators are the words "AND", "OR" and "NOT".

Diagram Explaining Boolean Operators

Searching the Literature

Tips for searching the literature


See our PubMed Guide for help and tips.

Image showing the top of the PubMed guide from Briscoe Library.


See our Scopus guide for help and tips.

An image showing the Scopus guide from Briscoe Library.