NZES2005: New Zealand Election Study
The 2005 NZES had two main elements. The first was the study’s standard post-election survey, with questionnaires sent by post to several thousand New Zealanders. The second was more experimental, and took place on the Internet only, in two waves, one immediately before the election and another after the final results were announced. Unlike most Internet surveys, this was based on a random sample of enrolled voters, to whom postcards were sent during the final week of the campaign. The first-wave response rate was just over 10%, but it reflected surprisingly well the age and gender breakdown of the electorate.