The CROss-National Online Survey Panel (CRONOS) is the world’s first input-harmonised cross-national probability-based web panel to be undertaken. It has been piloted in three countries – Estonia, Great Britain and Slovenia – by following up with respondents who took part in Round 8 (2016) of the European Social Survey (ESS).

As part of the SERISS project, the CRONOS panel has served as a platform for experimental testing also for EVS.

The first wave of CRONOS features items from the European Values Study.

CRONOS data are available for download from the European Social Survey website.