A comparative analysis of school-based and internet-based samples used in the ISRD4 study in Czechia

• In Event: ISRD Panel 5: Methodological issues in ISRD4

Abstract

The paper examines the advantages and limitations of two modes of data collection utilized in the International Self-Report Delinquency study (ISRD4) in Czechia, conducted in 2023. The school-based segment of the survey relies on a random stratified sample of school classes in two Czech cities, covering grades 8-11 (youths aged approximately 13-17; N=2,126). The second sample was drawn from an online panel provided by a professional research agency. It comprises young people aged 16-21 and was based on a shortened version of the ISRD4 questionnaire (N=1,626). Firstly, the paper discusses the data quality and representativeness issues associated with both samples. Secondly, it addresses the comparability of the samples and contrasts results of selected indicators from both surveys. Thirdly, the focus shifts to examining associations and the similarity of their seize and direction in both samples, presenting bivariate as well as multivariate results. The paper concludes with a discussion on the implications of employing different sampling methodologies within the ISRD4 study framework in Czechia.

Authors

• Zuzana Podaná, Katedra sociologie, Charles University Prague

• Jiri Burianek, Katedra sociologie, Charles University Prague