title: Reliability and validity of the Portuguese version of the Stroke Impact Scale 2.0 (SIS 2.0).
abstract: OBJECTIVE
  To test the reliability and validity of the Portuguese version of the Stroke Impact Scale 2.0 (SIS 2.0).
  
  
  METHODS
  Two samples (N = 448 and N = 50) of stroke patients attending physical therapy were evaluated. The Portuguese versions of the SIS 2.0 and Chedoke-McMaster Stroke Assessment (CMSA), and a set of individual patient characteristics were the measures used.
  
  
  RESULTS
  Reliability was good with Cronbach's alpha coefficients ranging from 0.83 to 0.96, and intraclass correlation coefficients (ICC) between 0.70 and 0.95 for the SIS 2.0 domains. Construct validity was supported by 6 predefined hypotheses involving expected correlations between SIS 2.0 domains, CMSA dimensions and age. An additional predefined hypothesis was also confirmed, with subjects without complications during hospitalization obtaining significantly higher scores in 7 of the 8 SIS 2.0 domains (P < 0.05).
  
  
  CONCLUSIONS
  The Portuguese SIS 2.0 evidenced suitable psychometric characteristics in terms of reliability and validity.
authors.affiliation: Centre for Health Studies and Research, University of Coimbra, Coimbra, Portugal. ruigoncalves@estescoimbra.pt
authors.forename: Rui Soles
authors.initials: RS
authors.lastname: Gonçalves
authors.forename: João Neves
authors.initials: JN
authors.lastname: Gil
authors.forename: Luís Manuel
authors.initials: LM
authors.lastname: Cavalheiro
authors.forename: Rui Dias
authors.initials: RD
authors.lastname: Costa
authors.forename: Pedro Lopes
authors.initials: PL
authors.lastname: Ferreira
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006304:Health Status; D006801:Humans; D008297:Male; D008875:Middle Aged; D011174:Portugal; D011594:Psychometrics; D011788:Quality of Life; D020521:Stroke / Q000523:psychology*; D011795:Surveys and Questionnaires / Q000592:standards*