Abstract
Purpose
The Patient-Reported Outcomes Measurement Information System (PROMIS) aims to develop patient-reported outcome (PROs) instruments
for use in clinical research. The PROMIS pediatrics (ages 8–17) project focuses on the development of PROs across several
health domains (physical function, pain, fatigue, emotional distress, social role relationships, and asthma symptoms). The
objective of the present study was to report on the psychometric properties of the PROMIS Pediatric Anger Scale.
for use in clinical research. The PROMIS pediatrics (ages 8–17) project focuses on the development of PROs across several
health domains (physical function, pain, fatigue, emotional distress, social role relationships, and asthma symptoms). The
objective of the present study was to report on the psychometric properties of the PROMIS Pediatric Anger Scale.
Methods
Participants (n = 759) were recruited from public school settings, hospital-based outpatient, and subspecialty pediatrics clinics. The anger
items (k = 10) were administered on one test form. A hierarchical confirmatory factor analytic model (CFA) was conducted to evaluate
scale dimensionality and local dependence. Item response theory (IRT) analyses were then used to finalize the item scale and
short form.
items (k = 10) were administered on one test form. A hierarchical confirmatory factor analytic model (CFA) was conducted to evaluate
scale dimensionality and local dependence. Item response theory (IRT) analyses were then used to finalize the item scale and
short form.
Results
CFA confirmed that the anger items are representative of a unidimensional scale, and items with local dependence were removed,
resulting in a six-item short form. The IRT-scaled scores from summed scores and each score’s conditional standard error were
calculated for the new six-item PROMIS Pediatric Anger Scale.
resulting in a six-item short form. The IRT-scaled scores from summed scores and each score’s conditional standard error were
calculated for the new six-item PROMIS Pediatric Anger Scale.
- Content Type Journal Article
- Pages 1-10
- DOI 10.1007/s11136-011-9969-5
- Authors
- Debra E. Irwin, Department of Epidemiology, CB #7295, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Brian D. Stucky, Department of Psychology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Michelle M. Langer, National Board of Medical Examiners, Philadelphia, PA, USA
- David Thissen, Department of Psychology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Esi Morgan DeWitt, Division of Rheumatology, James M. Anderson Center for Health Systems Excellence, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
- Jin-Shei Lai, Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Karin B. Yeatts, Department of Epidemiology, CB #7295, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- James W. Varni, Department of Pediatrics, College of Medicine, Texas A&M University, College Station, TX, USA
- Darren A. DeWalt, Division of General Medicine and Clinical Epidemiology, Cecil G. Sheps Center for Health Services Research, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Journal Quality of Life Research
- Online ISSN 1573-2649
- Print ISSN 0962-9343