Dataset details
Ref dataset: 642 (1.0.0)
Dataset title
Survey on sexual victimization of children and adolescents in Switzerland - 2009-2010
DOI 10.23662/FORS-DS-642-1
Ref dataset 642
Ref study 10805
Dataset language English
Additional information The first cycle of the study took place in Switzerland and China between 2008 and 2011. Data from the Chinese study are also available at DARIS.
Dataset version 1.0.0
Version notes
Publication date 29.02.2016
See variables on De Visu
Bibliographical citation Optimus Study, initiated and funded by UBS Optimus Foundation - 2009-2010 [Dataset]. Principal Investigators: Ulrich Schnyder, University of Zurich, Switzerland; Edward Chan, University of Hong Kong, China. Distributed by FORS, Lausanne, 2014.
Data type Quantitative data
Consent of respondents
Time method Cross-section
  • Digitalized data file
Data collector
Available document types
  • FORS documentation
  • Syntax file
  • Other
Remarks about the documentation
Restriction None
Special order
Special permission With prior agreement of author
Status Published

Collection date - begin 01.08.2009
Collection date - end 31.08.2009
Analysis unit
  • Individual
Universe Students who attended the ninth grade in August 2009 in state schools in Switzerland, including those in special needs classes
Sampling description Based on a list from the Swiss Federal Statistical Office containing all state schools and classes in Switzerland, a stratified target sample was drawn. Stratification was based on geographic regions and the strata were the seven Swiss “major regions” and
Mode of data collection
  • Self-administered questionnaire: Web-based
Data collection instruments
  • Questionnaire
Data source
Weighting information Le rapport final des chercheurs contient des informations sur la pondération (chapitre 2.5).
Response rate Resulting sample: 7441 students in 449 classes in 177 schools Completed questionnaires: 6841 Valid questionnaires: 6749 Response rate: 91%
Data completeness
Number of cases 6749
Number of variables 3464