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Children of Immigrants Longitudinal Survey in Four European Countries - Germany (CILS4EU-DE) - reduced version. Reduced data file for download and off-site use

Research Question

This project focuses on the intergenerational integration of the children of immigrants in four selected European countries: Germany, the Netherlands, Sweden, and the United Kingdom. Initially funded within the NORFACE programme, it is the first comprehensive and fully-standardized panel study on this topic in Europe.

Between 2010 and 2013, three waves of data collection were conducted with children of immigrants and their majority peers starting at age 14, thus covering a crucial, formative period of their lives. Furthermore, parental as well as teachers’ surveys were realised during the first wave of data collection. Based on these data, it will be possible to investigate the complex causal interplay between the processes of structural, social, and cultural integration. The project started from the assumption that this is the only way one can account for the important differences between countries, ethnic groups, and domains of life, as revealed by prior research on the integration of the second generation in Europe. The project is the first to collect the data needed to uncover the mechanisms behind these diverse and complex patterns: large-scale, strictly comparative, theory-guided, multilevel and longitudinal data. Regarding the latter, the longitudinal aspect did not end after the initial NORFACE funding period in 2014. All country teams started—sometimes, as in the case of Germany, meanwhile successful—initiatives to prolong the project in the context of national research projects, still ensuring highly coordinated action between the different country teams.

In autumn 2014, the fourth wave of the German part of CILS4EU was completed.

Test Language


Test Period

01.2014 - 09.2014

Test Area and International Link

Germany / International connection by CILS4EU

Population / Sample

All students who have attended the 9th grade in the first wave of the survey (2010/11) of CILS4EU. The sampling universe of subsequent waves are all respondents of the initial survey who are generally willing to participate in future surveys. /
Probability Sample: Stratified Cluster Sample (first stage: disproportional stratified random Sample of schools, second level: random sample of classes in the schools. Within the classes all students have been interviewed.)

Sample Size

n= tracking: 6196
youth main: 3035
youth siblings: 3025

Survey Procedure and Instruments

Self-administered questionnaire: CAWI (Computer Assisted Web Interview)
Self-administered questionnaire: Paper
Telephone Interview: CATI (Computer Assisted Telephone Interview)

Link to the Detailed Description of the Study

Persistent Identifier

DOI: 10.4232/cils4eu-de.6656.1.0.0

Data Accessible via Research Data Centre

GESIS - Leibniz-Institute for the Social Sciences

Information about the user conditions can be found here:


GESIS Team Datenservice
Phone: +49 221 / 476 94 - 420
Email: datenservice.das[at]

Research Area(s)