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The Impact of voting Reforms on Ballot Invalidation: A Comparison of the 2000 and 2004 Presidential Elections in Florida
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The Impact of Voting Reforms on Ballot Invalidation:
A Comparison of the 2000 and 2004 Presidential Elections in Florida
Abstract
Did the reforms passed by the Florida legislature after the 2000 presidential election reduce the number of invalidated ballots in 2004? Employing a before and after design and regression analysis this research finds that the percent of ballots without a valid vote for president dropped dramatically from almost 3% in 2000 to only .4% 2004. The two voting systems now in use, optical scan with precinct tabulation and DRE (touch screens), both have extremely low rates of invalidation compared to the old punch card systems and optical scan with central tabulation and the small difference between the current systems is not statistically significant. In addition standardizing ballot design to one, column on one page has also significantly reduced the levels of ballot invalidation. Finally a comparison of regression models that include most plausible variables of interest indicates that most of the remaining variance in ballot invalidation in 2004 is primarily attributable to chance in contrast to 2000 when almost 85% of the variance was explained by voting system, confusion, and demographic factors.
Aubrey Jewett
University of Central Florida
Department of Political Science
P.O. Box 161356
Orlando, Florida 32816-1356
407-823-6030
## email not listed ##
A paper prepared for presentation at the 2005 annual meeting of the Southern Political Science Association, New Orleans.
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The Impact of Voting Reforms on Ballot Invalidation:
A Comparison of the 2000 and 2004 Presidential Elections in Florida
Abstract
Did the reforms passed by the Florida legislature after the 2000 presidential election reduce the number of
invalidated ballots in 2004? Employing a before and after design and regression analysis this research
finds that the percent of ballots without a valid vote for president dropped dramatically from almost 3% in
2000 to only .4% 2004. The two voting systems now in use, optical scan with precinct tabulation and
DRE (touch screens), both have extremely low rates of invalidation compared to the old punch card
systems and optical scan with central tabulation and the small difference between the current systems is
not statistically significant. In addition standardizing ballot design to one, column on one page has also
significantly reduced the levels of ballot invalidation. Finally a comparison of regression models that
include most plausible variables of interest indicates that most of the remaining variance in ballot
invalidation in 2004 is primarily attributable to chance in contrast to 2000 when almost 85% of the
variance was explained by voting system, confusion, and demographic factors.
Aubrey Jewett
University of Central Florida
Department of Political Science
P.O. Box 161356
Orlando, Florida 32816-1356
407-823-6030
## email not listed ##
A paper prepared for presentation at the 2005 annual meeting of the Southern Political Science
Association, New Orleans.
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