BOPP - building the Belgian Online Probability Panel (BOPP) Vrije Universiteit Brussel
data infrastructure co-owned by all Belgian universities and
intended to boost and integrate interdisciplinary research in
behavioral and social sciences. The panel consists of 4,000
Belgian citizens (16y+), randomly selected from the
National Register. Respondents regularly receive short
online surveys. Respondents without internet access can fill
out a postal questionnaire. BOPP fields a yearly core
questionnaire to collect basic information (e.g., economic
situation, household ...