Study title

The National Election Survey 2018 was conducted in a collaboration between the Department of Political Science of University of Gothenburg and Statistics Sweden (SCB). This collaboration has covered all of the parliamentary elections, referendums and elections to the European Parliament since 1956. The Department of Political Science is responsible for the questionnaires, processing of data, coding and analyses. SCB is responsible for sampling and fieldwork. Swedish National Election Studies participates in a wider international cooperation: Comparative Study of Electoral Systems (CSES). The cooperation means, among other things, that the same interview questions are asked not only in Sweden, but also in several other countries around the world. The Swedish National Election Studies participate in the CSES collaboration for the fifth time in connection to the election 2018. Previously, the CSES questionnaires have been included in the Election Surveys' comprehensive post-election surveys. In connection to the election 2018 a new design was introduced. For the first time, a separate sample was drawn for the CSES edition of the Swedish National Election study, e.g. separate from the sample for the traditional National Election Survey. The separate CSES sample 2018 consists of a representative sample of 8,000 Swedish citizens aged 18-80 that are eligible to vote. Swedish citizens living abroad are not included in the sample. The Swedish National Election Study 2018 - CSES Edition is a post-election survey that was conducted at the same time as the Election Survey 2018. The data collection was done through mail-surveys and web-surveys. The field period for the Swedish CSES Survey started on 10 September 2018 and lasted until 6 November 2018. The response rate was 47.3 percent.