Ballot Design and Usability
http://www.usabilityprofessionals.org/upa_publications/upa_voice/volumes/2008/august/ballot-design.html

Quesenbery, Whitney
Usability Professionals Association
2008

Abstract:

Discusses the importance of usability testing as a final check on ballot layout and instructions text. Many of the problems in the report would likely have been caught with even an informal test. The report highlights a usability testing kit for local election officials, the LEO Usability Testing Kit.