This research note reports on the 2002 and 2006 Chapel Hill expert surveys (CHES), which measure national party positioning on European integration, ideology, and several European Union (EU) and non-EU policies. The reliability of expert judgments is examined and the CHES data are cross-validated with data from the Comparative Mani- festo Project, the 2003 Benoit-Laver expert survey and the 2002 Rohrschneider-Whitefield survey.
The dataset is available on the CHES website.