https://www.iea.nl/data-tools/repository/cived
CIVED | IEA.nl
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https://nces.ed.gov/surveys/cived/faq.asp?FAQType=5
The Civic Education Study (CivEd) - Frequently Asked Questions
This page offers frequently asked questions concerning the Civic Education Survey.
the civicfrequently askededucationstudyquestions