title: Development and psychometric evaluation of a new instrument for measuring sleep length and television and computer habits of Swedish school-age children.
abstract: The aim was to develop a new instrument for measuring length of sleep as well as television and computer habits in school-age children. A questionnaire was constructed for use when children visit the school health care unit. Three aspects of the validity of the questionnaire were examined: its face validity, content validity, and construct validity. Test-retest reliability was assessed by giving the questionnaire twice, 2 weeks apart, to the respondents. The questionnaire was assessed as being reasonably valid, the test-retest results (n = 138) showing 90.4% of the estimates regarding bedtime on weeknights on the two survey occasions to lie within ± 30 min of each other, the test-retest agreement also being rather close (κ > .600) regarding both sleep and media habits. The instrument can be a valuable tool in a clinical setting, both for measuring sleep habits in a class and for discussing sleep with individual school children and their families.
authors: School Health Care, Klostergårdsskolan, Lund, Sweden. pernilla.garmy@lund.se
authors: Pernilla
authors: P
authors: Garmy
authors: Ulf
authors: U
authors: Jakobsson
authors: Per
authors: P
authors: Nyberg
mesh_terms: D000293:Adolescent; D002648:Child; D003201:Computers / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male; D017286:Polysomnography / Q000379:methods / Q000592:standards; D011594:Psychometrics / Q000379:methods* / Q000592:standards; D015203:Reproducibility of Results; D012890:Sleep / Q000502:physiology*; D013548:Sweden; D013690:Television / Q000706:statistics & numerical data*