Standard Article

Health Status Instruments, Measurement Properties of

  1. Holger SchÜnemann1,
  2. Elizabeth Juniper2,
  3. Gordon Guyatt3

Published Online: 15 JUL 2005

DOI: 10.1002/0470011815.b2a4a020

Encyclopedia of Biostatistics

Encyclopedia of Biostatistics

How to Cite

SchÜnemann, H., Juniper, E. and Guyatt, G. 2005. Health Status Instruments, Measurement Properties of. Encyclopedia of Biostatistics. 4.

Author Information

  1. 1

    University of Buffalo, Buffalo, NY, USA

  2. 2

    Qoltech, Bosham, UK

  3. 3

    McMaster University, Hamilton, Ontario, Canada

Publication History

  1. Published Online: 15 JUL 2005

Abstract

In this article, we present the key measurement properties necessary for a useful health status instrument. These instruments can measure health status at a moment in time to differentiate between individuals (discriminative instruments) or they can measure change over time (evaluative instruments). We describe how investigators establish validity, responsiveness, and interpretability of a health status measure. Furthermore, we describe advantages and disadvantages of various administration methods for health status measures.

Keywords:

  • health status;
  • minimal important difference;
  • questionnaire administration