title: Reliability and validity of a physical activity questionnaire in children.
abstract: BACKGROUND
  valid and appropriate assessment of physical activity in children is still needed.
  
  
  OBJECTIVE
  to determine the test-retest reliability and validity of the Arabic version of the Questionnaire l'Activite Physique en Altitude Chez les Enfants.
  
  
  METHODS
  
  
  
  METHODS
  6- to 9-year-old children were recruited in Al Ain, United Arab Emirates. Reliability: questionnaire was administered twice, 3 weeks apart. Intraclass correlation coefficients and 95% confidence interval calculated.
  
  
  RESULTS
  comparison between the questionnaire and pedometer. Spearman's correlation coefficients were calculated. Bland-Altman method was used to detect potential bias.
  
  
  RESULTS
  a fair-to-good reliability was found, with the highest values for running during breaks at school and total active time during weekdays. No significant difference between the two measurements was observed. The validity was acceptable for total active time during weekdays.
  
  
  CONCLUSIONS
  for the first time, a questionnaire was identified as very promising to assess physical activity in Arabic children.
authors.affiliation: Department of Nutrition and Health, College of Food and Agriculture, United Arab Emirates University , Al Ain , UAE. platatcarine@uaeu.ac.ae
authors.forename: Carine
authors.initials: C
authors.lastname: Platat
authors.forename: Amjad
authors.initials: A
authors.lastname: Jarrar
mesh_terms: D002648:Child; D003625:Data Collection; D005260:Female; D015438:Health Behavior; D006801:Humans; D008297:Male; D009043:Motor Activity / Q000502:physiology*; D015203:Reproducibility of Results; D057566:Self Report; D011795:Surveys and Questionnaires; D014479:United Arab Emirates