The project is conducted on representative sample of 800 respondents, in the form of telephone (CATI) interviews, from our studio in Warsaw.
Sample size assures high reliability of results (+/- 3% maximum std. error) and allows to split the sample into a number of categories (e.g. town size, geographic region, age group).
Sample covers 31 towns and agglomerations with at least 100.000 inhabitants.
