The Changing Nature of Information Research: Evaluating Sources Library Database Preparing to Search a Database Choosing the Correct Database Database Fields Research: Locating Sources The Changing Nature of Information Research: Using Databases Research: Techniques and Tools Defining Research Introduction


Search Technique
(continued)

Boolean Operators

Now that you have a list of useful subjects, it's important that they be combined in a specific way. Using the e-mail and its impact on relationships example, you might have come up with the following list of subjects:

Internet Interpersonal relations
  Interpersonal communication
  Social networks
  Social relations
  Marital relations

Notice that the subjects have been grouped based on similarity. Subjects that are similar are ORed, and (groups of) subjects that are not similar are ANDed, as illustrated below. The next page provides a more complete explanation of Boolean operators, but you can see now how the example of a complex search at the beginning of this discussion was created.

Boolean Operators (AND & OR)
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These pages were written by Glenn Remelts. and edited by Jeffrey L. Nyhoff and Nancy Zylstra
©2005 Calvin University (formerly Calvin College), All Rights Reserved

If you encounter technical errors, contact computing@calvin.edu.