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The National SOM Survey 2009

SND-ID: SND 0888

This study is part of the collection The National SOM survey

Alternative title

Riks-SOM 2009

Creator/Principal investigator(s)

University of Gothenburg, SOM Institute


Since 1986 the SOM-institute has been carrying out an annual nation-wide survey - the National SOM - in order to identify the Swedish public's habits and attitudes on the topics of society, politics and media. National SOM 2009 is accordingly the twenty-fourth survey in this series.
The SOM-institute is a collaboration between three departments/institutes at Göteborg University: the Institute for Journalism and Mass Communication, the Department of Political Science, and the Center for Public Sector Research (CEFOS). A number of research projects are involved in the National SOM - most from one of these three institutions, but also external projects are involved.
Since 1998 the survey includes two nation representative samples and uses three different mail questionnaires. One fifth of the questions asked in the three questionnaires are common for both samples, for example questions about media habits, political attitudes, leisure activities, and social background.


The main purpose is to establish time series that enable researchers to analyse how various changes in society affect p

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Research principal, contributors, and funding

Research principal

University of Gothenburg

Responsible department/unit

SOM Institute

Protection and ethical review

Data contains personal data


Method and time period

Unit of analysis


Individuals aged 15-85 years and residing in Sweden

Sampling procedure

Probability: Simple random
Three parallel nationally representative sub-surveys based on a sample of 3000 individuals each

Time period(s) investigated


Geographic coverage

Geographic spread

Geographic location: Sweden

Lowest geographic unit


Highest geographic unit



Holmberg, Sören & Weibull, Lennart (eds.) (2010) Nordiskt ljus : 37 kapitel om politik, medier och samhälle : SOM-undersökningen 2009. SOM report no. 50. Göteborg: SOM Institute. ISBN 978-91-89673-19-9.
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ISSN: 0284-4788
ISBN: 978-91-89673-19-9

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The National SOM Survey 2009

Version 1.0


University of Gothenburg, SOM Institute (2011). The National SOM Survey 2009. Swedish National Data Service. Version 1.0.

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Data format / data structure


Creator/Principal investigator(s)

University of Gothenburg, SOM Institute

Data collection

  • Mode of collection: Self-administered questionnaire: paper
  • Time period(s) for data collection: 2009-09-11–2010-02-09
  • Data collector: PFM Research
  • Sample size: 9000
  • Number of responses: 4926
  • Non response size: 4074
  • Cause of non response - No contact/refusal: 629
  • Cause of non response - No contact/refusal: 3445
  • Source of the data: Population group



Number of individuals/objects


Response rate/participation rate

55% (brutto) / 59% (netto)

Published: 2011-04-01
Last updated: 2020-01-22