Now do voters notice review screen anomalies? a look at voting system usability

  • Authors:
  • Bryan A. Campbell;Michael D. Byrne

  • Affiliations:
  • Department of Psychology, Rice University, Houston, TX;Department of Psychology, Rice University, Houston, TX

  • Venue:
  • EVT/WOTE'09 Proceedings of the 2009 conference on Electronic voting technology/workshop on trustworthy elections
  • Year:
  • 2009

Quantified Score

Hi-index 0.00

Visualization

Abstract

Everett (2007) showed that about two thirds of voters do not notice when the review screen on an electronic voting machine does not agree with the selections they intended. However, the instructions given to voters in those experiments did not emphasize the need for veriBication and the design of the review screen did little to aid voters in detecting anomalies. This research follows up that work, but this time with improved instructions and with a re-designed review screen that makes certain conditions, particularly undervotes, more visually salient. This did increase the detection rate, but only up to 50%. Our Bindings also extend Everett's research; in general, people tend to prefer electronic voting machines over other technologies such as punch cards, lever machines, and even paper ballots. This was again true, but only for voters who failed to notice any anomaly. In addition, voters took longer to vote with the DRE than with older technologies, but with no concomitant decrease in error rate. We also show that the relationship between true error rates and the oft-used residual vote rate is not straightforward.