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. 2011 Aug;53(8):704-10.
doi: 10.1111/j.1469-8749.2011.03996.x. Epub 2011 Jun 27.

Developing and validating the Communication Function Classification System for individuals with cerebral palsy

Mary Jo Cooley Hidecker  1 , Nigel Paneth, Peter L Rosenbaum, Raymond D Kent, Janet Lillie, John B Eulenberg, Ken Chester Jr, Brenda Johnson, Lauren Michalsen, Morgan Evatt, Kara Taylor
Affiliations

Developing and validating the Communication Function Classification System for individuals with cerebral palsy

Mary Jo Cooley Hidecker et al. Dev Med Child Neurol. 2011 Aug.

Abstract

Aim: The purpose of this study was to create and validate the Communication Function Classification System (CFCS) for children with cerebral palsy (CP), for use by a wide variety of individuals who are interested in CP. This paper reports the content validity, interrater reliability, and test-retest reliability of the CFCS for children with CP.

Method: An 11-member development team created comprehensive descriptions of the CFCS levels, and four nominal groups comprising 27 participants critiqued these levels. Within a Delphi survey, 112 participants commented on the clarity and usefulness of the CFCS. Interrater reliability was completed by 61 professionals and 68 parents/relatives who classified 69 children with CP aged 2 to 18 years. Test-retest reliability was completed by 48 professionals who allowed at least 2 weeks between classifications. The participants who assessed the CFCS were all relevant stakeholders: adults with CP, parents of children with CP, educators, occupational therapists, physical therapists, physicians, and speech-language pathologists.

Results: The interrater reliability of the CFCS was 0.66 between two professionals and 0.49 between a parent and a professional. Professional interrater reliability improved to 0.77 for classification of children older than 4 years. The test-retest reliability was 0.82.

Interpretation: The CFCS demonstrates content validity and shows very good test-retest reliability, good professional interrater reliability, and moderate parent-professional interrater reliability. Combining the CFCS with the Gross Motor Function Classification System and the Manual Ability Classification System contributes to a functional performance view of daily life for individuals with CP, in accordance with the World Health Organization's International Classification of Functioning, Disability and Health.

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References

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