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Article
Evaluating Clinical Rating Scales for Evidence-Based Dermatology: Some Basic Concepts
Dermatologic Clinics (2005)
  • Madhulika A. Gupta, The University of Western Ontario
  • Andrew M. Johnson, The University of Western Ontario
  • Mary-Margaret Chren
Abstract
Evidence-based dermatology has necessitated the development of rating scales that measure multidimensional and abstract constructs, such as quality of life. This article discusses some basic psychometric concepts, such as reliability, validity, standardization, and measurement precision, which need to be considered when choosing a clinical rating instrument. Also discussed is the impact of these parameters on increasing the statistical power of a clinical trial.
Keywords
  • Dermatology,
  • Evidence-Based Medicine,
  • Predictive Value of Tests,
  • Psychometrics,
  • Quality of Life,
  • Skin Diseases
Publication Date
October, 2005
Citation Information
Madhulika A. Gupta, Andrew M. Johnson and Mary-Margaret Chren. "Evaluating Clinical Rating Scales for Evidence-Based Dermatology: Some Basic Concepts" Dermatologic Clinics Vol. 23 Iss. 4 (2005)
Available at: http://works.bepress.com/andrewjohnson/33/