Abstract
Date Presented 03/22/24
The Pediatric Evaluation of Disability Inventory–Patient Reported Outcome (PEDI–PRO) is a self-assessment of functional abilities for youth with developmental disabilities ages 14–22. A national sample of 307 established its structural, known-groups, and convergent validity. Results inform automatic scoring algorithms.
Primary Author and Speaker: Andrew Persch
Additional Authors and Speakers: Pengsheng Ni, Beth Pfieffer, Ariel Schwartz
Contributing Authors: Fiorella Guerrero, Jessica M. Kramer
PURPOSE: The PEDI-PRO is an accessible self-report assessment that measures functional skills that support transition to adulthood in three domains (Daily Activities, Social/Cognitive, Mobility) and is a companion measure to the gold-standard PEDI-CAT.
AIM: To establish the psychometric properties of the PEDI-PRO and develop a scoring algorithm for use in practice.
DESIGN: Cross-sectional study.
METHOD: A national purposeful sample of 307 youth (M age= 18.8 yrs, sd= 2.4 yrs, 65% male, 53% non-white) with varying disabilities (24.5% intellectual disability, (ID) 45% autism, 12% both ID and autism, 18.5% other) completed the PEDI-PRO following a standard administration process. Classical test theory and item response theory (IRT) analytical approaches examined structural validity (confirmatory factor analysis (CFA) and response scale threshold parameters. Linear regression examined relationships between known groups and PEDI-PRO scores; convergent validity with PEDI-CAT was examined using Pearson correlations.
RESULTS: Structural validity analyses support the measurement conceptual model, in which 3 unidimensional domains (Mobility: 22 items; Daily Activities: 27 items; Social/Cognitive: 24 items) are maintained, as all CFI, TLI, and RMSEA meet ideal criteria for CFA. IRT analyses demonstrate appropriate use of three point response scale in unidimensional domains. Known groups validity and convergent validity analyses will be completed in July 2023.
CONCLUSION: The PEDI-PRO meets criteria for structural validity when used with youth with developmental disabilities. These results support the creation of automatic scoring algorithms embedded within the PEDI-PRO software. The software will produce criterion domain scores and confidence intervals, fit scores, and change scores over repeated administration.
IMPACT: The PEDI-PRO is an accessible self-report that may be used to enhance engagement in client-centered OT services and to evaluate self-reported outcomes.
References
Kramer, J. M., Schwartz, A. E., Davies, D. K., Stock, S., & Ni, P. (2021). Usability and reliability of an accessible Patient Reported Outcome Measure (PROM) software: The PEDI-PRO. American Journal of Occupational Therapy, 75, 7501205010. https://doi.org/10.5014/ajot.2020.040733
Kramer, J. M., & Schwartz*, A. E. (2018). Development of the Pediatric Disability Inventory-Patient Reported Outcome (PEDI-PRO) measurement conceptual framework and item candidates. Scandinavian journal of occupational therapy, 25(5), 335-346. https://doi.org/10.1080/11038128.2018.1502344
Kramer, J. M., Liljenquist*, K., & Coster, W. (2016). Validity, reliability, and usability of the PEDI-CAT (ASD). Developmental Medicine and Child Neurology, 58(3), 255-261. https://doi.org/10.1111/dmcn.12837
