Pediatric Evaluation of Disability Inventory Computer Adaptive Test

PEDI-CAT

Stephen M. Haley, PhD, PT, FAPTA, Wendy J. Coster, PhD, OTR/L, FAOTA, Helene M. Dumas, PT, DPT, MS, Maria A. Fragala-Pinkham, PT, DPT, MS, Richard Moed, MPA

The PEDI-CAT is a computer adaptive caregiver report which measures Daily Activities, Mobility, Social/Cognitive, and Responsibility. It’s designed for use with children and youth with a variety of physical and/or behavioral conditions. Guidance on using this test in your telepractice.

Publication date: Spring 2020

Age range: 0:1 - 20:11

Scores/interpretation: Normative standard scores (provided as age percentiles and T scores) and Scaled Scores

Qualification level: B Additional information

Completion time: 10-20 minutes

Administration: Q-global

Norms: US Nationally representative sample of 2,205. Additional clinical validation sample of 703 children with disabilities

Other languages: US Spanish, Brazilian Portuguese, Danish, Dutch, French-Canadian, German, Italian, Norwegian, and Swedish

Telepractice: Guidance on using this test in your telepractice

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The PEDI-CAT measures abilities in four domains:

Daily Activities
Mobility
Social/Cognitive
Responsibility - measures the extent to which the caregiver or child takes responsibility for managing complex, multi-step life tasks.

Response Scales

For the three Functional Skills domains of Daily Activities, Mobility, and Social/Cognitive, children's ability is rated on a 4 point Difficulty Scale with responses ranging from "Unable" to "Easy."
The Responsibility domain has its own 5 point Responsibility Scale with responses ranging from 'Adult/caregiver has full responsibility; the child does not take any responsibility' to 'Child takes full responsibility without any direction, supervision or guidance from an adult/caregiver'.
Unique Item Maps represent a reasonable, sequential pattern of functional skills consistent with children's development and recovery of function and transfer of responsibility from adult to child throughout childhood and young adulthood.

Applications:

Identification of functional delay
Examination of improvement for an individual child after intervention
Evaluation and monitoring of group progress in program evaluation and research
Can be used on multiple occasions for the same child (e.g. initial, interim, discharge and follow-up) and there is no minimum time that must pass between assessments
Scaled scores can be used for out-of-age (criterion referenced) assessment

Features:

Two Versions: Speedy and Content-Balanced
New for 2020! - New Autism Spectrum Disorder (ASD) Module
- a module of the PEDI-CAT that has been validated for the population of children and adolescents with Autism Spectrum Disorders (ASD). This module includes additional directions to help respondents select an appropriate rating given the unique characteristics of children with autism. This module also includes new or revised items in the Daily Activities, Social/Cognitive, and Responsibility domains. In addition, scaling of items on the Social/Cognitive domain has been adjusted according to the unique patterns of children and youth with autism
Age, gender and mobility device filters prevent irrelevant items from being presented
Items are worded using everyday language and clear examples
Illustrations of Daily Activities and Mobility items included to facilitate understanding of item intent

Sample Report

PEDI-CAT sample report

Resources

PEDI-CAT can only be administered via Q-global, which is our web-based platform that requires internet throughout the administration of the assessment. It cannot be completed without internet access. Q-global allows the option to complete the assessment on-screen, or email to the parent/caregiver via remote administration.

What security measures are in place to protect examinee data?

Psychometrics

When testing a child, are they compared to the same-aged peers within the 59 age groups?

Is the validity and reliability the same for the full vs speedy version?

There have been several studies exploring reliability and validity of the PEDI-CAT, many published in peer reviewed journals and/or the PEDI-CAT manual. One of the methods used to determine validity is to run data simulations, details of which are summarized in the manual. The full study is detailed here. Noteworthy is that correlations between the three versions of PEDI-CAT scores (5, 10 and 15 items) and the true score (score based on all the items) were all 0.95 or higher, even with the 5-item PEDI-CAT.

Does it affect the score or validity if too many "I don't Know" are checked?

No, each "I don't know" removes an item as deemed appropriate for use by the software and another item is used in its place. Respondents should keep in mind that if a child does not do an activity because it is too hard, then the response should be "Unable". The "I don't know" response should be selected if the respondent has not observed a child performing the activity.

Is the Scaled Score reported by PEDI-CAT a norm-referenced score or a criterion-referenced score?

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Pediatric Evaluation of Disability Inventory Computer Adaptive Test

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