Journal
JOURNAL OF HEALTH PSYCHOLOGY
Volume 26, Issue 9, Pages 1455-1467Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/1359105319877448
Keywords
fatigability; fatigue; fibromyalgia; multiple sclerosis; validation
Categories
Funding
- National Institute on Aging of the National Institutes of Health [R21AG053186]
- National Institute of Arthritis and Musculoskeletal and Skin Diseases of the National Institutes of Health [K01AR064275]
- National Institute of Aging [AG024824]
- Michigan Institute for Clinical & Health Research (MICHR: NIH) [UL1TR002240]
Ask authors/readers for more resources
The study aimed to validate the Pittsburgh Fatigability Scale in three different groups and found that it exhibited acceptable psychometric properties. However, some measurement estimates did not meet expectations, and item-total correlations for two items were lower than expected.
The aim of this study was to validate the Pittsburgh Fatigability Scale in three different groups: adults with multiple sclerosis (n = 65), fibromyalgia (n = 64), and healthy adults (n = 86). Participants completed the Pittsburgh Fatigability Scale and other self-report measures. While findings supported the internal consistency of the Pittsburgh Fatigability Scale (all Cronbach's alpha > 0.85), standard error of measurement estimates were larger than hypothesized. In addition, while item-level reliability was generally supported, item-total correlations for two items were lower than expected. Convergent and discriminant validity were supported, and the Pittsburgh Fatigability Scale was able to distinguish between individuals with and without chronic disease. Overall, the Pittsburgh Fatigability Scale exhibited acceptable psychometric properties.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available