title: Portuguese cultural adaptation and validation of the Activities Scale for Kids (ASK).
abstract: OBJECTIVE
  The main purpose of the current study was to perform the cross cultural adaptation and validation of the Activities Scale for Kids (ASK) both in its capability and performance versions to the European Portuguese language so it can be used in Portugal by healthcare professionals in children from 5 to 15 years of age with functional disabilities related to specific health conditions.
  
  
  METHODS
  The cross-cultural adaptation of ASK followed the classic sequential methodology for linguistic equivalence. To test its validity, internal consistency, and reproducibility, the Portuguese version of ASK was administered together with the KINDL Questionnaire (KINDL) to 88 children (10±3 years of age) with functional limitations. The test-retest study was conducted two weeks apart.
  
  
  RESULTS
  After obtaining the semantic and content validity, the Portuguese version of ASK demonstrated good levels of reproducibility (performance: intraclass correlation coefficient [ICC]=0.99; capability: ICC=0.98) and internal consistency (performance: α=0.98; capability: α=0.97). The correlations between ASK and KINDL were positive and moderate.
  
  
  CONCLUSIONS
  The Portuguese version of ASK showed acceptable levels of validity, internal consistency, and reproducibility; the authors recommend its use in clinical settings.
authors.affiliation: Polytechnic Institute of Coimbra, Coimbra Health School, Coimbra, Portugal. Electronic address: danielapaixaomartins@gmail.com.
authors.forename: Daniela
authors.initials: D
authors.lastname: Paixão
authors.affiliation: Polytechnic Institute of Coimbra, Coimbra Health School, Coimbra, Portugal; Centre for Health Studies & Research, University of Coimbra, Coimbra, Portugal.
authors.forename: Luís Manuel
authors.initials: LM
authors.lastname: Cavalheiro
authors.affiliation: Polytechnic Institute of Coimbra, Coimbra Health School, Coimbra, Portugal; Centre for Health Studies & Research, University of Coimbra, Coimbra, Portugal.
authors.forename: Rui Soles
authors.initials: RS
authors.lastname: Gonçalves
authors.affiliation: Centre for Health Studies & Research, University of Coimbra, Coimbra, Portugal; School of Economics, University of Coimbra, Coimbra, Portugal.
authors.forename: Pedro Lopes
authors.initials: PL
authors.lastname: Ferreira
mesh_terms: D000203:Activities of Daily Living; D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003431:Cross-Cultural Comparison; D003466:Cultural Characteristics; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D011174:Portugal; D011788:Quality of Life; D012016:Reference Values; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires / Q000592:standards*; D014177:Translations
keywords: Capability; Capacidade; Child; Criança; Deficiência; Desempenho; Disability; Medidas dos resultados; Outcome measures; Performance