Hello Anjuman - There was a 10 year longitudinal study of citizenship education in England.
KERR, D., IRELAND, E., LOPES, J., CRAIG, R. with CLEAVER, E. (2004). Making Citizenship Education Real: Citizenship Education Longitudinal Study Second Annual Report. London: DfES.
Keating, A., Green, A. and Janmaat, J.G. (2015) Young Adults and Politics Today: disengaged and disaffected or engaged and enraged? The latest findings from the Citizenship Education Longitudinal Study (CELS). LLAKES Research Brief. UCL Institute of Education.