Development of the Social Motor Function Classification System for Children with Autism Spectrum Disorders: A Psychometric Study

Tamis W. Pin (Corresponding Author), Vincent K.K. So, Cynthia S.H. Siu, Sheila S.N. Yip, Stella See wing Cheung, Jenny Yim mui Kan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

To examine reliability and validity of the new Social Motor Function Classification System for Children with Autism Spectrum Disorders (SMFCS-ASD). The SMFCS-ASD reliability was examined on 25 children (62.4 months SD 7.8) with ASD among six physical therapists. The validity study involved 1001 children (57.0 months, SD 9.9) with ASD using the gross motor scale (GMS) of the Peabody Developmental Motor Scales (PDMS-2). The indices of agreement and reliability across six examiners were moderate to substantial (Cohen’s κ ≤ 0.65 and ICC > 0.90, all p < 0.001). The SMFCS-ASD was significantly correlated with the GMS of PDMS-2 (all rho from 0.61 to 0.76, p < 0.001). The SMFCS-ASD was reliable and significantly correlated with the GMS of the PDMS-2.

Original languageEnglish
Pages (from-to)1995-2003
Number of pages9
JournalJournal of Autism and Developmental Disorders
Volume51
Issue number6
DOIs
Publication statusPublished - 5 Sep 2020

Keywords

  • Autism spectrum disorders
  • Classification
  • Social motor function

ASJC Scopus subject areas

  • Developmental and Educational Psychology

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