Measures of voter confidence are often used by election reform researchers as part of their efforts to determine whether election administration systems are operating well. In a new report from the Caltech/MIT Voting Technology Project, Morgan Llewellyn, Thad Hall, and R. Michael Alvarez examine the determinants of faith in the process, and find that support for a winning candidate and access to a voter verified paper audit trail (VVPAT) both lead to higher levels of confidence.
Read the report here (PDF).