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Boolean Searching
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Boolean Searching

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Boolean Searching Boolean Searching Presentation Transcript

  • Searching with Boolean Operators
    Created by Terri Bogan, M.L.S.
    For Hope International University
    Fullerton, CA
  • Searching with Boolean Operators
    Make your search more precise using the connectors AND, OR, and NOT between your search terms.
    Narrow your search using AND.
    Broaden your search using OR.
    Exclude words from your search using NOT.
  • “AND”
    Narrow your search and retrieve fewer items by using the Boolean operator “AND”.
    Example:
    crime AND statistics
    The circle on the left represents items with the word “crime”.
    The circle on the right represents items with the word “statistics”.
    The shaded crossover section represents items that include both words crime AND statistics. The items retrieved must contain all words in the search.
    crime
    statistics
  • “OR”
    Broaden your search and retrieve more items using the Boolean operator “OR”.
    Example:
    robbery OR theft
    The circle on the left represents items with the word “robbery”.
    The circle on the right represents items with the word “theft”.
    The entire shaded area, including the crossover section, represents items with either one or both words
    robbery OR theft.
    robbery
    theft
  • “NOT”
    Use “NOT” to eliminate a word meaning (e.g. find items about dna testing, but not as it relates to crime).
    Example:
    dna testing NOT crime
    The circle on the left represents items with the words “dna testing”.
    The circle on the right represents items with the word “crime”.
    The crossover section is excluded in a “NOT” search because that section includes items with the word “crime”.
    crime
    dna testing
  • “AND”
    Connect your search terms using the “AND” operator.
  • “OR”
    Connect your search terms using the “OR” operator (sometimes referred to as “AND OR”).
  • “NOT”
    Connect your search terms using the “NOT” operator (sometimes referred to as “AND NOT”).