5. Reliability and Method Comparison Studies for Quality of Life Measurements

  1. Stephen J. Walters

Published Online: 10 SEP 2009

DOI: 10.1002/9780470840481.ch5

Quality of Life Outcomes in Clinical Trials and Health-Care Evaluation: A Practical Guide to Analysis and Interpretation

Quality of Life Outcomes in Clinical Trials and Health-Care Evaluation: A Practical Guide to Analysis and Interpretation

How to Cite

Walters, S. J. (2009) Reliability and Method Comparison Studies for Quality of Life Measurements, in Quality of Life Outcomes in Clinical Trials and Health-Care Evaluation: A Practical Guide to Analysis and Interpretation, John Wiley & Sons, Ltd, Chichester, UK. doi: 10.1002/9780470840481.ch5

Author Information

  1. School of Health and Related Research, University of Sheffield, UK

Publication History

  1. Published Online: 10 SEP 2009
  2. Published Print: 25 SEP 2009

ISBN Information

Print ISBN: 9780470753828

Online ISBN: 9780470686140

SEARCH

Keywords:

  • reliability and method comparison studies for QoL measurements;
  • intra-class correlation coefficient using test–retest study;
  • ANOVA table in estimating intra-class correlation;
  • estimating test–retest reliability;
  • Cohen's kappa index of agreement;
  • QoL items measured using ordered categorical responses;
  • internal consistency and Cronbach's alpha;
  • correlation coefficient - measure of association between continuous variables;
  • QoL instrument in measuring fatigue in cancer;
  • Cronbach's alpha calculation

Summary

This chapter contains sections titled:

  • Summary

  • Introduction

  • Intra-class correlation coefficient

  • Agreement between individual items on a quality of life questionnaire

  • Internal consistency and Cronbach's alpha

  • Graphical methods for assessing reliability or agreement between two quality of life measures or assessments

  • Further reading

  • Technical details