Application of generalizability theory confirmed lower reliability of the standard gamble than the feeling thermometer

  • Schünemann H
  • Norman G
  • Puhan M
 et al. 
  • 12

    Readers

    Mendeley users who have this article in their library.
  • 8

    Citations

    Citations of this article.

Abstract

Objectives: Recent studies suggest that rating clinical marker states (CMS) does not improve the measurement properties of the standard gamble (SG) and only slightly improves those of the feeling thermometer (FT). The poor intrarater (test-retest) reliability of CMS may explain their meager performance. Further, lack of interrater reliability may compromise the use of CMS in interpreting health state ratings. The aim of this study was to assess the reliability of CMS ratings for the SG and the FT. Study Design and Setting: Two similar studies in patients with chronic obstructive pulmonary disease (COPD, n = 91) and in patients with gastroesophageal reflux disease (GERD, n = 112) provided data for this analysis. Patients rated three different CMS (mild, moderate, and severe disease) twice several weeks apart. We used generalizability theory to calculate reliability coefficients. Results: Test-retest reliability for CMS ratings was higher for the FT compared to the SG (COPD: 0.86 vs. 0.67; GERD: 0.86 vs. 0.67). Interrater reliability was much higher for the FT compared to the SG (COPD: 0.78 vs. 0.46; GERD: 0.71 vs. 0.26). Conclusions: These results suggest that the markedly poorer reliability of CMS for the SG than the FT is driven largely by poor interrater reliability. © 2007 Elsevier Inc. All rights reserved.

Author-supplied keywords

  • Preference-based instruments
  • Reliability
  • Standard gamble
  • Utilities
  • Visual analogue scale

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • Milo PuhanUniversität Zürich - University of Zurich

    Follow
  • Holger J. Schünemann

  • Geoff Norman

  • Elisabeth Ståhl

  • Lauren Griffith

  • Diane Heels-Ansdell

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free