Harmonized Variables
SDR v.1.0, v.1.1 and v.1.2
Socio-demographics
Gender
Age (years)
Year of birth
Rural/non-rural place of residence
Metropolitan place of residence
Education (levels)
Years of schooling
Political attitudes and opinions
Trust in the national parliament
Trust in the justice system
Trust in political parties
Trust in the government
Interest in politics
Political behavior
Participation in demonstrations
Signing petitions
Social capital
Trust in people
Technical variables
Date of the Interview
Year of Interview
Survey year
Country (country/territory)
Weights
Calibrated Weights
In addition, SDR v.1.0, v.1.1, and v.1.2 contain Survey Quality Control variables and Control indicators for the Harmonization Process.
The SDR Database – Coverage

Slomczynski, Kazimierz M., Craig J. Jenkins, Irina Tomescu-Dubrow, Marta Kołczyńska, Ilona Wysmułek, Olena Oleksiyenko, Przemek Powałko, and Marcin W. Zieliński. 2017. “SDR Master Box.” doi:10.7910/DVN/VWGF5Q, Harvard Dataverse
For more information, see the book:
Słomczyński, Kazimierz M., Irina Tomescu-Dubrow, J. Craig Jenkins, with Marta Kołczyńska, Przemek Powałko, Ilona Wysmułek, Olena Oleksiyenko, Marcin W. Zieliński and Joshua K. Dubrow. 2016. Democratic Values and Protest Behavior. Harmonization of Data from International Survey Projects. Warsaw: IFiS Publishers. (full text)