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USD Information Literacy Lessons: Page 15

The broad focus of these lessons is understanding sources of information, including examples that can help you learn how to access information sources at USD. Each lesson is dedicated to a specific element of information competency.

Boolean Operators - NESTING

Boolean operators can be combined in a technique called Nesting to create focused searches in a database. Nesting involves using parentheses to join strings of search terms in combination with Boolean operators. Parentheses tell the database to do all searches in parentheses first followed by the operator that connects the two parenthetical searches. The search (school OR campus) AND (adolescent OR teenager) is an example of a nested search. The Boolean operators are highlighted in yellow.


The shaded areas represent the items that would be returned in this nested search.


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