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Research Data Center PIAAC at GESIS

The Research Data Centre PIAAC makes German and international data of the Programme for the Assessment of Adult Competencies (PIAAC) accessible to the scientific community. PIAAC was initiated by the Organization for Economic Cooperation and Development (OECD) and was the first fully computer-based large scale assessment in education. PIAAC assess key skills such as literacy and numeracy in the adult population (ages 16 to 65) of more than 30 countries. In Germany, several national extensions of the PIAAC survey were carried out yielding additional data for older adults (66-80 years of age) or an oversample of 26-55-year-old adults in former Eastern Germany. In addition data from a longitudinal follow-up of the German 2011/2012 respondents was collected (PIAAC-L). Moreover also the log files of several countries are available for analyses. During the assessment, user interactions were logged automatically and stored with time stamps in separate files called log files. The data for instance can be used to better understand test-taking behavior.


Available datasets

Available data: 

German PIAAC Main Study

  • PIAAC Scientific Use File (SUF) – since 2014
  • PIAAC SUF & Regional File – since 2016
  • PIAAC SUF & Microm File – since 2017

PIAAC-Supplement Studies

  • PIAAC Prime Age – since 2015
  • PIAAC Competencies in Later Life (CiLL) – since 2016


  • PIAAC-L SUF Wave 1 & 2 – since 2016
  • PIAAC-L SUF Wave 3 – since 2017

PIAAC International

  • Cyprus Public Use File (PUF) – since 2014
  • PIAAC Log Files (PUF) – since 2017
  • PIAAC Pilot Studies on Non-Cognitive Skills (SUF) – since 2018