References
- Pakula AT, Van Naarden Braun K, Yeargin-Allsopp M. Cerebral palsy: classification and epidemiology. Phys Med Rehabil Clin N Am 2009;20:425–52
- Rosenbaum P, Paneth N, Leviton A, et al. A report: the definition and classification of cerebral palsy April 2006. Dev Med Child Neurol 2007;49:8–14
- Attieh A, Al-Hadeed A, Al-Khamayseh Z, Wreikat A. Communication abilities of Jordanian individuals with cerebral palsy according to type, age, and mental abilities. J Roy Med Services 2010;17:8--14
- Palisano R, Rosenbaum P, Walter S, et al. Development and reliability of a system to classify gross motor function in children with cerebral palsy. Dev Med Child Neurol 1997;39:214–23
- Dietrich A, Abercrombie K, Fanning JK, Bartlett, D. Correspondence of classification of motor function of children with cerebral palsy aged two to four years between families and professionals: a pilot study. Dev Newslett Pediatr Div Can Physiother Assoc 2005;Spring:10–14
- Jewell AT, Stokes AI, Bartlett DJ. Correspondence of classifications between parents of children with cerebral palsy aged 2 to 6 years and therapists using the Gross Motor Function Classification System. Dev Med Child Neurol 2011;53:334–7
- McDowell BC, Kerr C, Parkes J. Interobserver agreement of the Gross Motor Function Classification System in an ambulant population of children with cerebral palsy. Dev Med Child Neurol 2007;49:528–33
- Morris C, Galuppi BE, Rosenbaum PL. Reliability of family report for the Gross Motor Function Classification System. Dev Med Child Neurol 2004;46:455–60
- Kondo I, Hosokawa K, Soma M, et al. Gross Motor Function Classifcation System: preliminary study for Japanese children. Am J Phys Med Rehabil 2003;82:116–21
- El Ö, Baydar M, Berk H, et al. Interobserver reliability of the Turkish version of the expanded and revised gross motor function classification system. Disabil Rehabil 2012;34:1030–3
- Silva Daniela BR, Pfeifer Luzia I, Funayama Carolina AR. Gross Motor Function Classification System Expanded & Revised (GMFCS E & R): reliability between therapists and parents in Brazil. Braz J Phys Ther 2013;17:458–63
- Sim J, Wright CC. The kappa statistic in reliability studies: use, interpretation, and sample size requirements. Phys Ther 2005;85:257–68
- Landis JR, Koch GG. The measurements of observer agreement for categorical data. Biometrics 1977;33:159–74
- Morris C, Kurinczuk JJ, Fitzpatrick R, Rosenbaum PL. Who best to make the assessment? Professional's and families' classifications of gross motor function in cerebral palsy are highly consistent. Arch Dis Child 2006;91:675–9