Klaas Sijtsma, Tilburg University

A Century of Reliability: Issues and Concerns

Invited Speaker

I will review the way psychometrics has addressed reliability of measurement through the years, and notice that with respect to reliability psychometrics has great difficulty to sail a straight course. The topics I briefly discuss are:

  • Definition of reliability through the years
  • Methods of estimating reliability
  • Different kinds of reliability
  • Reliability in different statistical models
  • Does knowledge development sail a straight course?
  • What do consumers of reliability need?

I will draw a conclusion of where we are with respect to reliability and provide recommendations for future research.

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