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The National SOM surveys

In order to identify how the evolution of society affects Swedes' attitudes and behaviour, the SOM Institute started its National SOM study in 1986. The resulting time series is unique in its kind.

National SOM addresses three areas – society, opinion and mass media – and consists of several parallel surveys. All surveys include a large number of questions related to politics, society, media and social background, but their areas of focus differ. In 2015, five different questionnaires were distributed.

Every year, the questionnaires are complemented with questions related to current events.

Each partial survey is nationally representative and includes a sample of 3400 individuals aged 16–85. Each questionnaire consists of 16-18 pages. The field work starts in mid-September each year and, following a series of reminders distributed via post and telephone, ends in February of the following year.


Every year, the SOM institute publishes a book in which the researchers present their results and analyses and, as far as possible, discuss observed long-term trends with respect to opinions and media. Each book also includes extensive documentation of the survey per se.

An annual time series report called Swedish trends is avalible in English.

The SOM Institute also publishes a large number of other reports in Swedish. All publications are made available via the SOM Institute's website.

Do you have questions about the national SOM survey?

Please do not hesitate to contact Frida Vernersdotter at frida.vernersdotter@som.gu.se or 031 - 786 49 96.

Survey Information

Annika Bergström
Research Director

46 (0)31 786 5178

Page Manager: The SOM-institute|Last update: 7/21/2016

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