Statistics Norway conducted an experiment in the 2025 Quality of Life Survey to boost participation among people aged 80 and older. A random sample of 4,996 respondents from the Norwegian Population Register was split into 12 groups that varied by response mode (web or paper) and by contact strategy (digital letter in Altinn, postal letter, telephone recruitment) and by access to digital contact information. Overall response rate was 25.1 %, ranging from 1.7 % in groups that could not be contacted digitally and were asked to respond online, to 58.1 % in groups that were digitally contactable, received a paper questionnaire, and were contacted by telephone, digital letter and mail. Paper surveys produced higher response rates and a sample closer to the population in age, gender, education, income, health and social contact. Telephone recruitment and postal mail improved participation, especially when combined with paper surveys.
Source: Statistics Norway (Statistisk sentralbyrå).
Text/data reproduced from https://www.ssb.no/.
Licence: Creative Commons Attribution 4.0 International (CC BY‑4.0).
Licence link: https://creativecommons.org/licenses/by/4.0/
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