How to create a search by connecting keywords using Boolean operators.
Boolean Operators connect keywords or concepts logically to retrieve relevant articles, books, and other resources. There are three Boolean Operators:
Example: The result list will include resources that include both keywords -- "distracted driving" and "texting" -- in the same article or resource, represented in the shaded area where the circles intersect (area shaded in purple).
Example: The result list will include resources that include the keyword "texting" OR the keyword "cell phone" (entire area shaded in blue); either is acceptable.
Example: The result list will include all resources that includes the term "car" (green area) but will exclude any resource that includes the term "motorcycle" (purple area) even though the term car may be present in the resource.
When a search term is more than one word, enclose the phrase in quotation marks to retrieve more precise and accurate results. Using quotation marks around a term will search it as a "chunk," searching for those particular words together in that order within the text of a resource.
TIP: In some databases, neglecting to enclose phrases in quotation marks will insert the AND Boolean connector between each word resulting in unintended search results.
Library databases provide a variety of tools to limit and refine search results. Limiters provide the ability to limit search results to resources having specified characteristics including:
In both the EBSCO and ProQuest databases, the limiting tools are located in the left panel of the results page.
The short video below provides a demonstration of how to use limiters to refine a list of search results.
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