| Name: | ballotPaperFill |
| Label: | Interviewer: Was mock ballot paper filled out? |
| Question: | Interviewer: Was ballot paper filled out? |
| Type: | Dichotomous |
| 2011 | General election | Data forthcoming | ||
| 2007 | General election | Data forthcoming | ||
| 2007 | General election | Data forthcoming | ||
| 2006 | General election | panel | Data forthcoming | |
| 2004 | General election | panel | Data forthcoming | |
| 2003 | General election | panel | Data forthcoming | |
| 2002 | General election | Data forthcoming |