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  4. Research on survey methodology

Research on survey methodology

In the SOM surveys and the Swedish Citizen Panel, the SOM Institute conduct research in the academic field of survey methodology. The main purpose of our survey methodology research is to assess, strengthen, and advance the research methods used by the SOM Institute.

In order to ensure quick access to our, both bigger and smaller, methodological advancements, we regularly publish them in our report series Notes on Survey Methodology. This page also lists papers on survey methodology published by our researchers in various journals.

The SOM Institute’s Notes on Survey Methodology

2025

The SOM Institute's Notes on Survey Methodology 2025:4

I want YOU for this survey! - Text interventions in email reminders to increase response rates in web surveys (pdf)
Freja Wessman & Klara Jagers

The SOM Institute's Notes on Survey Methodology 2025:3

Sender gender – The effect of signatory gender in an invitation on web panel participation (pdf)
Karin Zwinkels

The SOM Institute's Notes on Survey Methodology 2025:2

Knock, Knock. Who’s there? - The Effects of Visual Sender Recognition (pdf)
Cornelia Andersson, Sebastian Lundmark & Klara Persson

The SOM Institute's Notes on Survey Methodology 2025:1

Inclusion or illusion? A follow-up on how offering questionnaires in multiple languages may increase participation (pdf)
Cornelia Andersson

Published paper:

Sebastian Lundmark and Kim Backström, , Survey Research Methods: Vol. 19 No. 3 (2025).

2024

The SOM Institute's Notes on Survey Methodology 2024:3

Reporting left-right ideology with different verbally labeled end-points (pdf)
Felix Cassel & Sebastian Lundmark

The SOM Institute's Notes on Survey Methodology 2024:2

Effects of push-to-web in paper-and-pencil and online mixed mode surveys (pdf)
Frida Sandelin

The SOM Institute's Notes on Survey Methodology 2024:1

Reassessing incentive effects: Further exploring the role of diversified incentives on persons aged 18-39 and persons born outside the Nordics (pdf)
Frida Sandelin & Elisabeth Falk

Published paper:

Nora Theorin and Sebastian Lundmark, , Survey Methods: Insights from the Field (2024).

2023

The SOM Institute's Notes on Survey Methodology 2023:5

The implications of offering questionnaires in multiple languages (pdf)
Sebastian Lundmark, Björn Rönnerstrand & Frida Sandelin

The SOM Institute's Notes on Survey Methodology 2023:4

Breaking the conversational norm: Up means good, but left only means left (pdf)
Freja Wessman & Felix Cassel

The SOM Institute's Notes on Survey Methodology 2023:3

Investigating acquiescence response bias in a few Swedish questions (pdf)
Freja Wessman

The SOM Institute's Notes on Survey Methodology 2023:2

The impact sampling strategies have on experimental treatment effects (pdf)
Alexandra Garcia Nilsson & Sophie Cassel

The SOM Institute’s Notes on Survey Methodology 2023:1

The effects of diversified incentives among two hard-to-reach groups in Sweden: persons aged 18-39 and persons born outside the Nordics (pdf)
Frida Sandelin & Elisabeth Falk

Published paper:

Sebastian Lundmark, John Protzko and Marcus Weissenbilder, , International Journal of Public Opinion Research (2023).

2022

The SOM Institute’s Notes on Survey Methodology 2022:2

Verbal labels and the number of response options in grid-type questions (pdf)
Sebastian Lundmark

The SOM Institute’s Notes on Survey Methodology 2022:1

The effects of questionnaire length on response rate, non-response bias and data quality (pdf)
Frida Sandelin

Published paper:

Sophie Cassel, Josefine Magnusson and Sebastian Lundmark, . Methods, Data, Analyses (2022).

2021

The SOM Institute’s Notes on Survey Methodology 2021:2

The Trivial Pursuit effect: How political knowledge questions affect self-reported political interest (pdf)
Felix Andersson & Sebastian Lundmark

The SOM Institute’s Notes on Survey Methodology 2021:1

Effects of a fourth postal reminder in the SOM-surveys (pdf)
Frida Sandelin

Published paper:

Mike Medeiros, Benjamin Forest and Patrik Öhberg, , Political 91̽»¨ & Politics (2020).

Previous series on survey methodology

Between 2013 and 2019 the SOM institute published a series of Methodological notes and Working papers. At the moment, these documents are only available on the Swedish language version of this page.

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