Validation of the Everyday Ageism Scale Using Confirmatory Factor Analysis and Item Response Theory
Kylie A Arsenault1, Ying C MacNab2, Thomas Hadjistavropoulos1
1Department of Psychology and Centre on Aging and Health, University of Regina, Regina, SK, Canada.
Research on Aging
|November 20, 2025
Summary
The Everyday Ageism Scale reliably measures ageism in older adults. Item response theory analysis confirmed its validity, though some items may need refinement for better precision.
Area of Science:
- Gerontology
- Psychometrics
- Social Sciences
Background:
- Ageism significantly impacts older adults' well-being.
- The Everyday Ageism Scale is a key self-report measure.
- Item-level properties of the scale require thorough evaluation.
Purpose of the Study:
- To conduct an item response theory (IRT) analysis of the Everyday Ageism Scale.
- To evaluate the scale's reliability, structural validity, and item functioning.
- To assess measurement precision and item discrimination.
Main Methods:
- Confirmatory factor analysis (CFA) was performed.
- Item response theory (IRT) analysis was conducted.
- Data were collected from 486 older adults.
Main Results:
- The scale demonstrated acceptable reliability (McDonald's omega).
- A good model fit was observed for the three-factor structure.
- Specific items were identified for their measurement precision and differentiation capabilities.
Conclusions:
- The Everyday Ageism Scale is a valid and reliable tool for assessing ageism in North American older adults.
- Items 8-10 may require refinement to enhance their discriminatory and predictive power.
- Cross-cultural validation studies are recommended for future research.
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