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LING 320 (LING 4020): History of the English Language (Doughty) Spring 2022 Sec 1

Boolean Operators

Boolean operators are words or symbols that are used in conjunction with words to refine searches. 

Here are six helpful ones to use: 

  1. AND - narrows 
    1. Ex: ADHD and boys (this narrows down our results to only include ADHD and boys) 
  2. NOT - excludes
    1. Ex: ADHD not boys (this narrows down our results to include things about ADHD excluding those that mention boys) 
  3. OR - expands
    1. Ex: boys or males or guy (this expands our our search to search for multiple possible terms) 
  4. * - expands 
    1. Ex: rac*  (using the asterisk in replace of an ending on a word will expand your search to include results that have any ending on the base word.)
  5. " " - exact phrase
    1. Ex: "executive functioning" (this pulls up results that are stated in the item exactly as written) 
  6. ( ) - confine
    1. Ex: (ADHD or attention deficit/hyperactivity disorder) AND (boys or guys or males)     - (this will instruct the database or search engine on what parts go together in your search phrase

Databases

Below you will find a selection of databases that MAY be helpful for your topic. As you all are looking at very different topics, not ever database will be helpful. This list is also just a starting point. You may find helpful resources in other databases and that's great!