title: The Health Behaviour in School-aged Children (HBSC) study: methodological developments and current tensions.
abstract: OBJECTIVE
  To describe the methodological development of the HBSC survey since its inception and explore methodological tensions that need to be addressed in the ongoing work on this and other large-scale cross-national surveys.
  
  
  METHODS
  Using archival data and conversations with members of the network, we collaboratively analysed our joint understandings of the survey's methodology.
  
  
  RESULTS
  We identified four tensions that are likely to be present in upcoming survey cycles: (1) maintaining quality standards against a background of rapid growth, (2) continuous improvement with limited financial resources, (3) accommodating analysis of trends with the need to improve and adapt questionnaire content, and (4) meeting the differing requirements of scientific and policy audiences.
  
  
  CONCLUSIONS
  While these challenges are not trivial, the structure of the HBSC network and its long-term experience in working through such challenges renders it likely that HBSC can provide a model of other similar studies facing these tensions.
authors.affiliation: Research and Evaluation Branch, Public Health Strategy Division, Department of Public Health and Health Professions, Welsh Assembly Government, Cardiff, UK. Chris.Roberts@wales.gsi.gov.uk
authors.forename: C
authors.initials: C
authors.lastname: Roberts
authors.forename: J
authors.initials: J
authors.lastname: Freeman
authors.forename: O
authors.initials: O
authors.lastname: Samdal
authors.forename: C W
authors.initials: CW
authors.lastname: Schnohr
authors.forename: M E
authors.initials: ME
authors.lastname: de Looze
authors.forename: S
authors.initials: S
authors.lastname: Nic Gabhainn
authors.forename: R
authors.initials: R
authors.lastname: Iannotti
authors.forename: M
authors.initials: M
authors.lastname: Rasmussen
mesh_terms: D002648:Child; D002652:Child Behavior; D003625:Data Collection / Q000379:methods*; D015438:Health Behavior; D006306:Health Surveys; D006801:Humans; D038622:Internationality; D011340:Problem Solving