The 2023 OECD Survey on Drivers of Trust in Public Institutions is the second survey wave after the 2021 inaugural Trust Survey. This annex provides a short overview of the 2023 OECD Trust Survey data collection. More details can be found in the report’s online annex.
Countries could choose between participating in a centralized data collection coordinated by the OECD Secretariat or managing their own data collection through the National Statistical Office or another survey provider. Most countries, except of six, opted for the first option.
Following the methodology from the 2021 survey wave, in most countries, the 2023 survey relied on a non-probability sampling approach. It consisted of ex ante country-level quotas on the distribution of age, gender, education and regions (hard quotas) and income (soft quota). The country-specific quotas on the distribution of age, gender, education and region, together with the ex-post weighting, ensure national representativeness of the survey data for these characteristics. The quotas were derived from different national and OECD sources (Table B.1). In 24 countries, the online surveys were conducted by the survey provider Ipsos and the sample was based on Ipsos' and partners’ online panels, comprised of individuals in each country who willingly signed up to be engaged in market research surveys. In some of the countries where the data collection was managed by National Statistical Offices or by other survey providers, the sampling deviated from non-probability sampling. For example, in Finland, the sampling frame was the census database; in Ireland, the sample frame was drawn from the Central Statistics Office’s census and matched to a non-probability-based sample based on gender, age group, education level, household size, principal economic status, and housing status; and in Mexico, urban households were selected for face-to-face survey interviews based on a three-stage sampling procedure.