The PartiRep Election Study - Regional 2009

"The Partirep Election Study / Regional 2009" is an electoral panel survey that was in the field before and after the 2009 elections in Belgium. The survey was organized by the Partirep consortium, and consisted of two pre-electoral waves, and one post-electoral wave. The field work was carried out by TNS-Dimarso and was supervised by the consortium. The abstract below provides a short description of the sampling procedure and the field work. Some first results of the voter survey were presented to the Belgian press in October 2009 in Dutch and in French.

In wave one, a geographically stratified sample of eligible voters in Flanders and Wallonia was drawn from the national registry. The total number of addresses was 4363, spread out over 240 sampling points. No replacement addresses were used. The selected individuals were then asked to participate in a CAPI interview that would last approximately 45 minutes. The expected net sample size for wave 1 was 2400 completed interviews. Due to the lower response rate an additional sample of 500 addresses was obtained for the most problematic sampling points. Field work on wave 1 commenced on February 21st, 2009 and ended on May 23rd, 2009. After field work for wave 1 ended, 2331 completed interviews had been conducted out of 4831 addresses, a response rate of 48,3 per cent (32 addresses were omitted from the gross sample as no contact information was obtained from the interviewers during the field work period; they were therefore treated as non-contacts).

Those respondents that were successfully contacted in the first wave, were asked to participate in two follow up surveys conducted over the telephone (CATI interviews). Of the 2331 successfully contacted respondents, 2057 agreed to participate in these additional surveys. Of those 2057 contacts, 1845 were successfully contacted in wave 2 Ð a response rate of 89,6 per cent. Field work for wave 2 ran from Monday, May 25th until Saturday, June 6th 2009. For wave 3, the same set of respondents was again contacted, which resulted in 1698 completed interviews, which is a response rate of 82,1 per cent. The field work for wave 3 ran from Monday, June 22nd until Monday, August 24th.

The questionnaires for the three waves can be found here in Dutch and in French. A full codebook in English is available here.
The data of the Partirep Election Study are available for all researchers wishing to use them. To receive the data one should fill in the draft contract (download here) and send two signed hard copies to the address mentioned on top of it.