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The CROss-National Online Survey (CRONOS) panel is the first cross-national probability-based online panel following a harmonised approach throughout—from the recruitment stage to data processing.

CRONOS is a pilot study to evaluate the effectiveness of panel recruitment on the back of an existing cross-national survey in terms of costs, sample representativeness, participation and attrition rates, and data quality. It was designed and implemented alongside ESS Round 8 in 2016, as part of the larger SERISS project. After completing the ESS Round 8 face-to-face interview, respondents in Estonia, Great Britain, and Slovenia who were 18 or older were invited to participate in six 20-minute online surveys. Data collection took place between December 2016 and February 2018.

Further information can be found under CRONOS in the Methodology section

CRONOS documents

CRONOS files

Users of data are obliged to read the ESS Conditions of use