Cited by 456Health Systems, Economic Evaluations, Quality of LifePsychometric Methodologies and TestingChronic Obstructive Pulmonary Disease (COPD) Research

A comparison of Likert and visual analogue scales for measuring change in function

Guyatt, Gordon H., Townsend, Marie, Berman, Leslie B., Keller, Jana L.·1987·Journal of Chronic Diseases

Abstract

Many controlled trials rely on subjective measures of symptoms or quality of life as primary outcomes. The relative merits of different response options for these measures is an important, but largely unexplored, issue. Therefore, we compared the responsiveness of seven-point Likert vs visual analogue scales (VAS) in a questionnaire measuring quality of life in chronic lung disease. The VAS and seven-point scale versions of the questionnaire were administered to 28 patients before and after completing an inpatient respiratory rehabilitation program of known benefit. For all four dimensions of the questionnaire (dyspnea, fatigue, emotional function, and mastery) the VAS showed a larger improvement than the seven-point scale when both were standardized on a scale of 0-10. However, in each case the variability of the improvement was greater using the VAS. The difference in improvement between the two scales was not statistically significant. We conclude that the two methods of presenting response options show comparable responsiveness. The ease of administration and interpretation of the seven-point scale recommend its use in clinical trials.

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Crossref · 10.1016/0021-9681(87)90080-4

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Authors
Guyatt, G. H., Townsend, M., Berman, L. B., & Keller, J. L.
Affiliations
  • McMaster University Medical Centre (CA)
  • McMaster University (CA)
Venue
Journal of Chronic Diseases
Publisher
Elsevier BV
Published
1987-01
Volume
40
Issue
12
Pages
1129-1133
ISSN
0021-9681 (ISSN-L)
OpenAlex
W2017489436
Cited by
456
References
3
Citations by year
2026: 5 · 2025: 14 · 2024: 11 · 2023: 11 · 2022: 11 · 2021: 13 · 2020: 7 · 2019: 11 · 2018: 15 · 2017: 14 · 2016: 14 · 2015: 15 · 2014: 22 · 2013: 9 · 2012: 28
FWCI
13.49
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Chronic Diseases (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Health Systems, Economic Evaluations, Quality of Life
  • Social Sciences › Decision Sciences › Management Science and Operations Research › Psychometric Methodologies and Testing
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Chronic Obstructive Pulmonary Disease (COPD) Research
Keywords
Likert scale, visual analogue scale, responsiveness, quality of life, chronic lung disease, pulmonary rehabilitation, dyspnea, fatigue, emotional functioning, mastery, clinical trial outcome measures
MeSH terms
Clinical Trials as Topic, Humans, Lung Diseases, Pain Measurement, Quality of Life, Surveys and Questionnaires

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