Quality of Life Research

, Volume 22, Issue 10, pp 2939–2940 | Cite as

What does Cronbach’s alpha tell us about the EQ-5D? A methodological commentary to “Psychometric properties of the EuroQol Five-Dimensional Questionnaire (EQ-5D-3L) in caregivers of autistic children”

Commentary

Keywords

Measurement Instrument Autistic Child Homogenous Test Group Validity Item Selection 

References

  1. 1.
    Khanna, R., Jariwala, K., Bentley, J. P. (2013). Psychometric properties of the EuroQol Five Dimensional Questionnaire (EQ-5D-3L) in caregivers of autistic children. Quality of Life Research [Epub ahead of print].Google Scholar
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    The EuroQol Group. (1990). EuroQol—a new facility for the measurement of health-related quality of life. Health Policy, 16(3), 199–208.CrossRefGoogle Scholar
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    Ware, J. E., Kosinski, M., Turner-Bowker, D. M., & Gandek, B. (2002). User’s manual for the SF-12v2 health survey (with a supplement documenting SF-12 health survey). Lincoln, RI: Quality Metric Incorporated.Google Scholar
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    Nunnally, J. C. (1978). Assessment of reliability. Psychometric theory (2nd ed., pp. 225–255). New York: MacGraw-Hill Series.Google Scholar
  5. 5.
    Cronbach, L. (1951). Coefficient alpha and the internal structure of tests. Psychometrika, 16, 297–334.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  1. 1.BambergGermany

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