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Assessing measurement in health: Beyond reliability and validity.
1Humanalysis, Inc., 75 Clinton Street, Saratoga Springs, NY 12866, USA; Centre for Health Practice Innovation, Griffith University, 170 Kessels Road, Nathan, Brisbane, QLD 4111, Australia.
International Journal of Nursing Studies
|August 4, 2015
Summary
Psychometric assessments in nursing often overlook the reliability and validity of change scores, a crucial aspect for measuring patient progress. Future research should focus on assessing the psychometric adequacy of change scores for evolving health constructs.
Area of Science:
- Health Measurement
- Psychometrics
- Nursing Research
Background:
- Psychometric concepts have evolved, influenced by the COSMIN (COnsensus-based Standards for the selection of health Measurement INstruments) report.
- This evolution impacts health measurement and the development of new assessment tools.
Purpose of the Study:
- To describe emerging ideas in health measurement development and testing.
- To present a revised measurement taxonomy building on COSMIN standards.
- To explore the application of new psychometric concepts in nursing research.
Main Methods:
- A descriptive analysis of psychometric studies published in major nursing journals (2010-2014).
- A review of 105 studies to assess adherence to a new measurement taxonomy.
- Examination of psychometric assessments focusing on reliability and validity.
Main Results:
- Most reviewed nursing studies employed traditional psychometric concepts (reliability, validity).
- Few studies assessed longitudinal measurement aspects, such as the reliability and validity of change scores (responsiveness).
Conclusions:
- Many constructs relevant to nursing are subject to change and are targets of nursing interventions.
- Future psychometric research in nursing would benefit from assessing the adequacy of change scores.
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