Phase 3: Data collection

The phase of the data collection and preparation requires a specific know-how. Our experience with methodologically exacting national and international survey programs is a natural component of the services we offer.


Support in every process stage of developing instruments


Collect survey data within a probability-based mixed-mode access panel

  • ALLBUS: Die Allgemeine Bevölkerungsumfrage – The German General Social Survey
  • GLES: The German Longitudinal Election Study is the largest long-term German election study.
  • PIAAC: The Programme for the International Assessment of Adult Competencies of the OECD measures adult skill levels across 30 countries.
  • ISSP: The International Social Survey Programme; social science relevant topics from 47 countries.
  • EVS: The European Values Study describes value change in 47 countries.
  • ESS: The European Social Survey is a social science survey examining the social and political attitudes of citizens in 30 European countries
  • GESIS Panel: The GESIS Panel offers the social science community a unique opportunity to collect survey data within a probability-based mixed-mode access panel.