title: Linguistic validation of the sleep disturbance scale for children (SDSC) in Iranian children with Persian language.
abstract: OBJECTIVE
  The aim of this study was to have a linguistic validation of the Sleep Disturbance Scale for Children (SDSC) in Iranian children with Persian language.
  
  
  METHODS
  The study included a randomly selected sample of children, aged 6-15 years, from three primary and secondary schools located in Isfahan City, Iran. Following the forward-backward translation method, parents completed the SDSC as well as the Pediatric Quality of Life Inventory (PedsQL). Reliability (Cronbach's α) and convergent validity (item-subscale and subscale-total correlations) were assessed. The association of SDSC scores with PedsQL scores was evaluated for construct validity.
  
  
  RESULTS
  One hundred children were studied; mean age, 9.36±2.58 years, 68 girls. Scale Cronbach's α was 0.82, ranging from 0.40 for 'disorder of arousal' to 0.86 for 'sleep hyperhidrosis' subscales. Convergent validity was acceptable according to the corrected item-subscale correlations (r = 0.22-0.76) and corrected subscale-total correlations (r = 0.30-0.50). The SDSC total score as well as its subscales, except the 'disorder of arousal', were associated with the total PedsQL score and its factors (r = -0.20 to -0.64).
  
  
  CONCLUSIONS
  The overall psychometric properties of the Persian version of the SDSC seem to be appropriate in Iranian children.
authors: Medical Students' Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
authors: Maryam
authors: M
authors: Saffari
authors: Medical Students' Research Center, Isfahan University of Medical Sciences, Isfahan, Iran; Poursina Hakim Research Institution, Isfahan, Iran. Electronic address: gholamrezaei@med.mui.ac.ir.
authors: Ali
authors: A
authors: Gholamrezaei
authors: Child Growth and Development Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
authors: Hossein
authors: H
authors: Saneian
authors: Behavioural Sciences Research Centre, Khorshid Hospital, Isfahan, Iran.
authors: Abbas
authors: A
authors: Attari
authors: Center for Pediatric Sleep Disorders, Department of Social and Developmental Psychology, Sapienza University, Rome, Italy.
authors: Oliviero
authors: O
authors: Bruni
mesh_terms: D000293:Adolescent; D002648:Child; D005260:Female; D006801:Humans; D007492:Iran; D008037:Linguistics; D008297:Male; D011594:Psychometrics; D011788:Quality of Life / Q000523:psychology; D015203:Reproducibility of Results; D012893:Sleep Wake Disorders / Q000175:diagnosis* / Q000208:ethnology / Q000523:psychology; D011795:Surveys and Questionnaires
keywords: Adolescents; Children; Questionnaire; Sleep; Sleep Disturbance Scale for Children; Validation