International Self-Report Delinquency Study (ISRD)


The ongoing project, currently beginning its fourth sweep (ISRD4), allows patterns of offending and victimization to be tracked over time. The fourth data collection wave will take place between 2020-2022.

ISRD4 is still open for participation. 
Researchers interested in joining the ISRD4 data collection sweep may contact Professor Ineke Haen Marshall ( any of the members of the ISRD4 Steering Committee.

Participating Countries

The following countries are currently part of the ISRD4 network (grouped by geographical region).




Eastern and Central European countries

Mediterranean countries

Northern European countries

Western European countries

North America

Caribbean and Central America

South America



The self-report school questionnaire will be administered online, in two cities in each country, to a representative sample of 13 to 17 year students within the classroom setting, supervised by an external data collector. 

For ISRD4, the focus has moved to 13 to 17 year old students, in part because offending and victimization rates are higher for those age groups, and in part because of the interest in comparing student samples with samples of young people recruited via the internet. As in previous sweeps, in ISRD4 the target sample size for each national team will be 1,800 school students. Given the increasing difficulty of accessing schools for survey research, the development of sampling via the internet, and the fact that not all young people are in school (particularly as age increases), each national team will also gather a supplemental national sample of 16 and 17 year-olds recruited via the internet, using an abbreviated form of the standard ISRD4 questionnaire.

Theoretical focus

ISRD data enable tests of many prominent delinquency theories. The sweep-specific focus ISRD4 is online offending and victimization, perceptions of violence, and minority groups and identity.

Interested in participating?

Please contact Ineke Haen Marshall, ISRD4 Chair at