Cross-cultural validity of a naturalistic observational assessment of childrenaposs hand skills: A study using rasch analysis

Chi-Wen Chien, Ted Brown, Rachael McDonald

Research output: Journal article publicationJournal articleAcademic researchpeer-review

8 Citations (Scopus)


To investigate cross-cultural validity of a newly developed Assessment of Childrenaposs Hand Skills (ACHS) in children with and without disabilities. Subjects: One group of 138 Australian children and 134 Taiwanese children, age range 2-12 years (a total of 149 typically developing children and 123 children with disabilities). Methods: Rasch model analysis was used to evaluate rating scale performance, person-fit, and item unidimensionality of pooled data from the ACHS. Rasch-based differential item functioning was used to evaluate differences in item difficulties between cultural groups. Results: The appropriateness of the ACHS 6-level rating scale was confirmed in the pooled analysis. All 22 activity items and 19 of 20 hand skill items in the ACHS formed a unidimensional scale. The ACHS exhibited reasonable response patterns when applied to the composite sample of Australian and Taiwanese children. Differential item functioning was found in 7 activity items and 7 hand skill items. Conclusion: The ACHS can be used to assess and compare childrenaposs hand skills across Australian and Taiwanese cultural contexts with confidence. Adjustment for differential item functioning may be used when pooling or comparing ACHS data from these cultural groups.
Original languageEnglish
Pages (from-to)631-637
Number of pages7
JournalJournal of Rehabilitation Medicine
Issue number7
Publication statusPublished - 1 Jun 2011
Externally publishedYes


  • Children
  • Motor skills
  • Outcome assessment (healthcare)
  • Psychometrics

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Rehabilitation

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