RELQ is the name of an additional questionnaire on the use of common regional languages in the North of the Netherlands, i.e. Frysian and Low Saxon, among adult Lifelines participants. Implementation of this questionnaire in Lifelines was initiated by the department of information science of the University of Groningen.

132,000 adult participants were invitated to fill in the digital questionnaire on regional language use in November 2021. Non-responders received a personal reminder after 3 weeks.
A total of n=~38,500 participants filled in the questionnaire (30%).

• Buurke R et al. (2024) Intergenerational Language Transmission of Frisian and Low Saxon in the Netherlands. https://journals.sagepub.com/doi/10.1177/0261927X241287765
• Brouwer J et al. (2024) Minority language happiness: The link between social inclusion, well-being, and speaking a regional language in the northern Netherlands. https://doi.org/10.1016/j.amper.2024.100173
• Buurke R et al. (2024) Multiple estimates of the Frisian and Low Saxon speaker population size in the Netherlands. https://doi.org/10.1515/lme.28672125

The REL questionnaire consisted of questions on the use of local/regional languages and dialects, such as Frysian and Low Saxon.