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Pediatric Evaluation of Disability Inventory (PEDI)
Please visit this website for more information about the instrument:
Supplemental/Basic: Traumatic Brain Injury (TBI):
  Basic: Acute Hospitalized and Moderate/ Severe TBI
  Supplemental: Epidemiology and Concussion/ Mild TBI
Supplemental – Highly Recommended: Spinal Cord Injury (SCI)-Pediatric (ages 6 months to 7 years)
Supplemental: Cerebral Palsy (CP) and Neuromuscular Disease (NMD)
Supplemental: Congenital Muscular Dystrophy (CMD)
Particularly appropriate in assessing functional capabilities in CMD children in terms of both present status and change over time.
Exploratory: Duchenne Muscular Dystrophy (DMD)
Short Description of Instrument
The Pediatric Evaluation of Disability Inventory (PEDI) is a descriptive measure of a child’s current functional capabilities performance and tracks changes over time (Haley, Coster et al. 1992, Haley, Coster et al. 1992, Haley, Coster et al. 2010). The PEDI has been developed into a CAT and SF. The PEDI-CAT™ is a computerized adaptive test version (Haley, Coster et al. 2012). The PEDI measures both capability and performance of functional activities in three content areas: Self-care, Mobility and Social Function (Boston University 2016). The PEDI-CAT™ also measures abilities across three functional domains of Daily Activities, Mobility and Social/Cognitive and “can be used across all clinical diagnoses and community settings.”(Boston University 2016). It also includes a Responsibility domain that measures the extent that a caregiver or child takes “responsibility for managing complex, multi-step life tasks.” (Dumas and Fragala-Pinkham 2013, Boston University 2016).
Type: The original PEDI™ paper-and-pencil, parent interview; and the computer administered version PEDI-CAT™  
Time: 45–60 minutes; PEDI-CAT™ uses algorithms to choose next items to reduce administration time.
Age Range: The original PEDI™ is limited to the functional age range of 6 months – 7.5 years (Haley, Coster et al. 1992, Dumas and Fragala-Pinkham 2013); can be used to evaluate children older than 7 years whose functional capabilities are less than that of a typically developing
7-year-old. The PEDI-CAT™ is intended for use with children from birth through 20 years of age and can be used across all diagnoses, conditions and settings.
Scoring/Norms: Manual scoring
Scores for the PEDI™ range between 0–100, with higher scores indicating less degree of disability (higher functional level).
Scores in each content area can be converted to Scaled Scores and a Standard Score obtained compared to norms from typically-developing individuals.
Skills commensurate with at least a Master’s degree level in psychology, education, or related field are recommended for interpretation. The computerized PEDI-CAT™ provides normative standard scores for 21 age groups (Dumas and Fragala-Pinkham 2013). The normative standard scores are reported as age percentiles and T scores can be used to interpret a child’s functioning relative to others of the same age. Scaled scores are available for all ages which provide the child’s current level of function (Dumas and Fragala-Pinkham 2013).
Published: 1992
The PEDI allows calculation of Change Scores to monitor changes in the child’s status over time.
Gall et al. (2004) suggest PEDI is a better measure than WeeFIM in terms of reliability and validity, and it has similar basal and ceilings but more items (an advantage in terms of psychometrics; a limitation in terms of time).
PEDI is widely used with children with a range of physical disabilities particularly cerebral palsy (Vargus-Adams, Martin et al. 2011). Vos-Vromans and colleagues (2005) found that the PEDI is responsive to changes in motor functioning in children with CP.
Internationally there is mixed data regarding validity of PEDI use in other countries, though overall supports usefulness (Nordmark, Orban et al. 1999, Srsen, Vidmar et al. 2005, Berg, Aamodt et al. 2008, Elad, Barak et al. 2012).
Choksi et al. (2010) used the PEDI to examine the functional recovery of children with spinal cord injury. They found that children with SCI showed improved functional skills as measured by the PEDI. Other researchers have used the PEDI to measure functional outcome in children with critical illness (Coster, Haley et al. 2008, Choong, Al-Harbi et al. 2015), because it can assess key functional capabilities, and is sensitive to change (Choong, Al-Harbi et al. 2015).
Bedell GM. Functional outcomes of school-age children with acquired brain injuries at discharge from inpatient rehabilitation. Brain Inj. 2008;22(4): 313–324.
Berg M, Aamodt G, Stanghelle J, Krumlinde-Sundholm L, Hussain A. Cross-cultural validation of the Pediatric Evaluation of Disability Inventory (PEDI) norms in a randomized Norwegian population. Scand J Occup Ther. 2008;15(3):143–152.
Coster WJ, Haley S, Baryza MJ. Functional performance of young children after traumatic brain injury: a 6-month follow-up study. Am J Occup Ther. 1994;48(3):211– 218.
Dumas HM & Fragala-Pinkham MA. (2013). Making Advances in Pediatric Outcomes:  Using the Pediatric Evaluation of Disability Inventory Computer Adaptive Test (PEDI-CAT). Accessed from: http://www.educationresourcesinc.com/therapy-in-the-news/pedi-cat, 24 May 2018.
Dumas HM, Haley SM, Bedell GM, Hull EM. Social function changes in children and adolescents with acquired brain injury during inpatient rehabilitation. Pediatr Rehabil. 2001;4(4):177–185.
Dumas HM, Haley SM, Boyce ME, Peters CY, Mulcahey MJ. Self-report measures of physical function for children with spinal cord injury: a review of current tools and an option for the future. Dev Neurorehabil. 2009;12(2):113–118.
Dumas HM, Haley SM, Fragala MA, Steva BJ. Self-care recovery of children with brain injury: descriptive analysis using the Pediatric Evaluation of Disability Inventory (PEDI) functional classification levels. Phys Occup Ther Pediatr. 2001;21(2-3):7–27.
Dumas HM, Haley SM, Ludlow LH, Carey TM. Recovery of ambulation during inpatient rehabilitation: physical therapist prognosis for children and adolescents with traumatic brain injury. Phys Ther. 2004;84(3):232–242.
Elad D, Barak S, Eisenstein E, Bar O, Herzberg O, Brezner A. Reliability and validity of Hebrew Pediatric Evaluation of Disability Inventory (PEDI) in children with cerebral palsy -- health care professionals vs. mothers. J Pediatr Rehabil Med. 2012;5(2):107–115.
Feldman AB, Haley SM, Coryell J. Concurrent and construct validity of the Pediatric Evaluation of Disability Inventory. Phys Ther. 1990;70(10):602–610.
Fragala MA, Haley SM, Dumas HM, Rabin JP. Classifying mobility recovery in children and youth with brain injury during hospital-based rehabilitation. Brain Inj. 2002;16(2):149–160.
Gall R, Denniston R, Hookway N, Galvin J. (2004). The PEDI has better psychometric properties than the WeeFim, and is therefore the instrument of choice for measuring individual self care outcomes in children with acquired brain injury aged between 6 months and 7.5 years. Retrieved 11 January, 2016, from http://www.otcats.com/topics/CAT-Gall%20Galvin%20et%20al%202004%20WeeFim.html.
Haley S, Coster W, LudlowLH, Haltiwanger JT(1992). Pediatric evaluation of disability inventory: development, standardization, and administration manual, version 1.0. Boston, MA, Trustees of Boston University, Health and Disability Research Institute. Retrieved 11 January, 2016, from http://www.bu.edu/bostonroc/instruments/pedi/.
Haley SM, Coster WI, Kao YC, Dumas HM, Fragala-Pinkham MA, Kramer JM, Ludlow LH, Moed R. Lessons from use of the Pediatric Evaluation of Disability Inventory: where do we go from here? Pediatr Phys Ther. 2010;22(1):69–75.
Haley SM, Coster WJ, Dumas HM, Fragala-Pinkham MA (2012). Pediatric Evaluation of Disability Inventory Computer Adaptive Test (PEDI-CAT), Version 1.3.6, Development, Standardization and Administration Manual., CRECare, LLC. Retrieved 11 January, 2016, from http://www.pearsonclinical.com/psychology/products/100000505/pediatric-evaluation-of-disability-inventory-pedi.html.
Haley S M, Coster WJ, Dumas HM, Fragala-Pinkham MA, Kramer J, Ni P, Tian F, Kao YC, Moed R, Ludlow LH. Accuracy and precision of the Pediatric Evaluation of Disability Inventory computer-adaptive tests (PEDI-CAT). Dev Med Child Neurol. 2011;53(12):1100–1106.
Haley SM, Coster WJ, Ludlow LH, Haltiwanger JT Andrellos PA (1992). Pediatric Evaluation of Disability Inventory: Development, Standardization and Administration Manual. Boston, MA, Trustees of Boston University.
Haley SM, Dumas HM, Rabin JP, Ni P. Early recovery of walking in children and youths after traumatic brain injury. Dev Med Child Neurol. 2003;45(10):671–675.
Haley SM, Coster WJ, Ludlow LH, Haltiwanger JT, Andrellos PJ. (1992). Pediatric Evaluation of Disability Inventory (PEDI). Retrieved 2/24, 2015, from http://www.pearsonclinical.com/psychology/products/100000505/pediatric-evaluation-of-disability-inventory-pedi.html.
Kothari DH, Haley SM, Gill-Body KM, Dumas HM. Measuring functional change in children with acquired brain injury (ABI): comparison of generic and ABI-specific scales using the Pediatric Evaluation of Disability Inventory (PEDI). Phys Ther. 2003;83(9):776–785.
Nordmark E, Orban K, Hagglund G, Jarnlo GB. The American Paediatric Evaluation of Disability Inventory (PEDI). Applicability of PEDI in Sweden for children aged 2.0-6.9 years. Scand J Rehabil Med. 1999;31(2):95–100.
Ogonowski, J., R. Kronk, C. Rice and H. Feldman (2004). Inter-rater reliability in assigning ICF codes to children with disabilities. Disabil Rehabil 26(6): 353–361.
Ostensjo S, Bjorbaekmo W, Carlberg EB, Vollestad NK. Assessment of everyday functioning in young children with disabilities: an ICF-based analysis of concepts and content of the Pediatric Evaluation of Disability Inventory (PEDI). Disabil Rehabil. 2006;28(8):489–504.
Sršen KG, Vidmar G, Zupan A. Applicability of the pediatric evaluation of disability inventory in Slovenia. J Child Neurol 2005;20(5):411–416.
Tokcan GS, Haley M, Gill-Body KM, Dumas HM. Item-specific functional recovery in children and youth with acquired brain injury. Pediatr Phys Ther. 2005;15(1): 6–22.
Choksi A, Townsend EL, Dumas HM, Haley SM. Functional recovery in children and adolescents with spinal cord injury. Pediatr Phys Ther. 2010;22(2): 214–221.
Choong K, Al-Harbi S, Siu K, Wong K, Cheng J, Baird B, Pogorzelski D, Timmons B, Gorter JW, L. Thabane, M. Khetani and Canadian Clinical Care Trial Group (2015). Functional recovery following critical illness in children: the "wee-cover" pilot study. Pediatr Crit Care Med 16(4): 310–318.
Coster WJ, Haley SM, Ni P, Dumas and  HM,M. A. Fragala-Pinkham (2008). Assessing self-care and social function using a computer adaptive testing version of the pediatric evaluation of disability inventory. Arch Phys Med Rehabil. 2009; 89(4): 622–629.
Dumas, H. Clinical review of the pediatric evaluation of disability inventory. Pediatr Phys Ther .2001;13(1):47–48.
Dumas HM, Fragala-Pinkham MA .Concurrent validity and reliability of the pediatric evaluation of disability inventory-computer adaptive test mobility domain. 2012 Pediatr Phys Ther 24(2): 171–176; discussion 176.
Dumas HM, Fragala-Pinkham MA, Haley SM, Ni P, Coster W, Kramer JM, Kao YC, Moed R, Ludlow LH. Computer adaptive test performance in children with and. without disabilities: prospective field study of the PEDI-CAT. Disabil Rehabil. 2012;34(5):393-401.
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