BOPP - building the Belgian Online Probability Panel

The Belgian Online Probability Panel (BOPP) is an advanced
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 residents (16y+), randomly selected from the
National Register. Panelists regularly receive short online
surveys. Panelists without internet access can fill out a
postal questionnaire. BOPP fields a yearly core study
questionnaire to collect basic information (e.g., economic
situation, household composition, work, social and political
attitudes, health) from all panelists. For the other time
slots, researchers from all fields can apply to field their
surveys. After anonymization, public use files of the
integrated data are made available to the whole research
community. BOPP facilitates the linkage of survey
responses to administrative data.
BOPP offers access to high-quality, representative data,
collected fast and cost-effectively. The infrastructure
generates new opportunities for longitudinal analyses,
interdisciplinary research, experimental research designs
and linking collected data to administrative and context
data.