Self-Completion Study Based on the 2021 European Social Survey in Great Britain

This dataset is the result of an experimental fielding of the Round 11 European Social Survey (ESS) as a self-completion (web and paper) survey in Great Britain. Data collection was carried out between November 2021 and March 2022. The total number of cases included in the data file is 2,908. This includes fully completed questionnaires and those where at least 75% of 'ask all' questions were answered. 2,116 responses were via web and 792 were on paper. The response rate was between 36% and 40%, depending on which assumption is applied regarding ineligible cases (see the technical report for further details). The experiment also included an incentive experiment, with different levels of conditional incentive randomly assigned to sample units. The incentive condition is flagged in the data file. It is expected that users may compare this data with the UK ESS Round 10 data (based on a face-to-face approach), which is expected to be released via the ESS Data Archive in early 2023.