Quality of Life Research

, Volume 1, Issue 1, pp 73–75 | Cite as

Responsiveness to change: an aspect of validity, not a separate dimension

  • R. D. Hays
  • D. Hadorn


Assessment of health-related quality of life is accelerating in naturalistic observational studies, clinical trials, and clinical practice. Some researchers have argued that the ability of a quality of life instrument to detect clinically important changes over time, “responsiveness”, is a distinct psychometric property from the measure's reliability and validity. We discuss the important implications of this argument and counter that responsiveness is actually one indication of a measure's validity.

Key words

Reliability responsiveness validity 


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Copyright information

© Rapid Communications of Oxford Ltd 1992

Authors and Affiliations

  • R. D. Hays
    • 1
  • D. Hadorn
    • 1
  1. 1.Social Policy DepartmentRANDSanta MonicaUSA

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