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Measuring Psoriasis Severity at Home
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Measuring physicians' performance in clinical practice: reliability, classification accuracy, and validity.

Weifeng Weng1, Brian J Hess, Lorna A Lynn

  • 1American Board of Internal Medicine, Philadelphia, PA 19106, USA. wweng@abim.org

Evaluation & the Health Professions
|August 31, 2010
PubMed
Summary
This summary is machine-generated.

It is feasible to create a reliable measure of physician performance in diabetes care. This study shows high accuracy in differentiating high-performing from low-performing physicians using a composite score.

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Area of Science:

  • Medical Education
  • Health Services Research
  • Clinical Quality Measurement

Background:

  • Assessing physician clinical performance is challenging.
  • Fewer studies have explored the feasibility of valid classification decisions for physician performance.

Purpose of the Study:

  • To determine if a valid and accurate classification of physician performance is feasible.
  • To assess the psychometric properties of a composite measure for diabetes care quality.

Main Methods:

  • Utilized data from 957 physicians certified in internal medicine or subspecialties.
  • Administered the American Board of Internal Medicine (ABIM) Diabetes Practice Improvement Module (PIM).
  • Aggregated ten clinical and two patient-experience measures into a composite score.

Main Results:

  • The composite measure demonstrated high reliability (r = .91).
  • Classification accuracy was high (>0.90), enabling differentiation between high and low performers.
  • Physicians certified in endocrinology and those with higher IM certification exam scores had higher composite scores.

Conclusions:

  • A psychometrically robust composite measure for physician clinical performance in diabetes care is feasible.
  • This measure can accurately differentiate physician performance levels.
  • Findings provide validity evidence supporting the composite measure.