This document describes the methodological approach of the OeNB Barometer survey. The document may be referenced for waves conducted in 2023 and later. It will be updated for future waves if necessary. The OeNB Barometer is characterized as follows: Target population and sampling frame The target population of the OeNB Barometer includes all individuals aged 16 and above living in households in Austria, irrespective of nationality or citizenship. The sampling frame consists of postal addresses of all households in Austria. Interview modes From 2023 onward, the OeNB Barometer relies on a mixed-mode approach with computer assisted personal interviewing (CAPI) and computer assisted web interviewing (CAWI). The share of CAWI may fluctuate from wave to wave but does not exceed 30% of the total net sample. Sampling As sampling procedure, the survey relies on a stratified multistage random sampling design. Strata are formed from NUTS-3 regions divided into four classes by municipality size. The sampling procedure for CAPI relies on a three-stage clustered sampling approach by using small regional clusters ("enumeration districts") as primary, postal addresses as secondary, and individuals as tertiary sampling units. For CAWI, addresses are used as primary and individuals as secondary sampling units. Survey timing and fieldwork The OeNB Barometer is conducted semiannually by the Oesterreichische Nationalbank (OeNB) with about 1,400 interviews per wave conducted by IFES (Institut für empirische Sozialforschung GmbH). CAPI respondents are recruited in person at their place of residence. CAWI respondents are recruited by letter ("push-to-web"). Weighting The weighting approach includes design weights, non-response weights based on geographic statistics and interviewer characteristics, and post-stratification weights which are combined to produce final weights representative of the target population.
