La información se encuentra en inglés.

• ^{Consolidations of democracy: Consolidations of democracy in Central and Eastern Europe}
• ^{EES: European Election Studies}
• ^{EQLS: European Quality of Life Survey}
• ^{ESS: European Social Survey}
• ^{European Voter Database}
• ^{EVS: European Values Study}
• ^{EWCS: European Working Conditions Survey}
• ^{Eurobarometer Eurobarometer Surveys}
• ^{ISJP: International Social Justice Project}
• ^{ISSP: International Social Survey Program}
• ^{NEB: New Europe Barometer}
• ^{OECD PISA OECD Programme for International Student Assessment}
• <sup>SHARE: Survey of Health, Ageing and Retirement
  
  Otras encuestas internacionales</sup>

• ^{AfroBarometer
  The AfroBarometer is a longitudinal survey carried out in about 18 African countries, which measures people’s opinions and attitudes on issues regarding governance, democracy, livelihoods, conflict and crime, social capital and trust, national identity, economics and markets, national identity and social participation. Its waves are from 1999/2000, 2002/2003 and 2005/2006. Data is downloadable.}
• ^{AsianBarometer
  The Asian Barometer is a survey network and research programme on public opinion on political values, democracy, and governance carried out in 12 countries in East and West Asia. Surveys are from different countries and years. Wave 1 (8 countries) was carried out in 2001/2002, wave 2 (18 countries) in 2005/2007. Part of the data is available for online analysis and downloading.}
• ^{LatinoBarometer
  The LatinoBarometer is an annual public opinion survey carried out in 18 countries in Latin America. It started in 1995 and measures people’s opinions and attitudes regarding economy and international trade, democracy, social policies, inequality, civic culture, social capital, social participation, environment, gender and discrimination. Its data are available for online analysis and can be downloaded.}
• ^{PEW Global Attitudes Survey
  The PEW Global Attitudes Survey is an annual international survey carried out by the American PEW Research Centre, since 2001, in over 54 countries. Its topics vary, and include people’s opinions and attitudes regarding globalisation, democracy, terrorism, religion, and America. Part of the data is downloadable.}
• ^{The Voice of the People
  The Voice of the People is an annual international survey carried out by Gallup International, since 2002, in over 60 countries from all continents of the world. Its topics vary per year, and include people’s opinions and attitudes regarding governance and democracy, environment, terrorism and social issues. Data is available in the form of reports and prefabricated tables and graphs.}
• ^{World Values Survey
  The World Values Survey (WVS) is a longitudinal study of people’s values and opinions on a range of topics, carried out in various years and countries from all continents of the world. The Survey developed from the first European Values Study (EVS) survey of 1981. Its contents are closely connected to that of the EVS. Topics include: politics, family values, religion, work orientations, trust, civic norms, etc. The WVS waves (1981/1984, 1989/1993, 1994/1999, 1999/2004) cover a varying number of countries.}