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Access the Databases
Browse an alphabetical list of all databases, or search by name: CINAHL, PubMed.
What are Boolean Operators?
Combine your search terms using Boolean operators to get results. 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".
Prefer a video? Watch this Boolean Operators tutorial.
Identifying Theories Using Databases
Remember to use the [TW] tag with "theory," and then use Boolean Operators to combine with topic of interest.
Remember to use SUBJECT HEADINGS to help make searching easier. Most citations in CINAHL are indexed.
Use Boolean Operators to combine with your topic of interest and check the subject headings.
Using the Advanced Search feature of Google Scholar gives the user more control over results.