Answered By: Judith Jablonski
Last Updated: Oct 27, 2015     Views: 241

In general, reliability in research refers to consistency in a study or measurement test; validity refers to accuracy.

However, these concepts are much more complex in actual research practice than these broad definitions (validity in particular). The following are very useful resources for more information.

  • Look at the SAGE Research Methods tool in our licensed databases. (You'll need to login with your APUS credentials.) Do individual searches on validity and reliabilty. The results include a range of definitions and explanations in encyclopedia, dictionaries, and handbooks.
  • The open web, online text for social science research, Research Methods Knowledge Base, is another solid resource for information on these two important research concepts. The Table of Contents is here:  Scroll down for the sections on validity and reliability.

For more information on research methods, see our Research Methods Information guide.