Scientific Use Files

The questionnaire section provides the original questionnaires and an English translation for international users.

CILS4COVID

National instrument CILS4COVID
National instrument CILS4COVID (English)

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Scientific Use Files
Campus Use File
CILS4NEPS

Data Release

Campus Use File v2.0.0

16.12.2024
We are happy to announce the release of v2.0.0 of the CILS4EU Campus Use File. Students can now access data from England, the Netherlands, and Sweden in addition to the German data! Download all associated documentation materials here and find out how to access the data here.

CILS4EU-DE Wave 9

13.02.2024
Official release of a new data set: Wave 9 of CILS4EU-DE, the German follow-up study to CILS4EU, is available! Download all associated documentation materials here and find out how to apply for the data here

Latest Publication

Heyne, Stefanie, Kuhlemann, Jana and Irena Kogan (2025). Partnership Preferences in Modern Migration Societies: Religious Homophily Among Young Muslims and Christians in Germany. European Journal of Population, 41(4).

Read the paper here.