Critique of Lindeman, Stark, Yates’ 'BRAVO: Ballot polling Risk-limiting Audits to Verify Outcomes' and of Ottoboni, Bernhard, Halderman, Rivest & Stark’s 'Bernoulli Ballot Polling: A Manifest Improvement for Risk-Limiting Audits'

5 Pages Posted: 23 Jun 2019

Date Written: June 8, 2019

Abstract

Lindeman, Stark & Yates’ BRAVO (ballot polling audits to verify outcomes) method and Ottoboni, Bernhard, Halderman, Rivest & Stark’s BBP (Bernoulli ballot polling) method claim to be effective ways to audit election results that limit the risk of certifying incorrect election outcomes to a desired low rate alpha, α Both methods are a takeoff of Wald’s Sequential Probability Ratio Test (SPRT). Unfortunately, neither of these methods of conducting post-election audits limit the risk of certifying incorrect election outcomes to their stated limit.

Keywords: BRAVO ballot polling, Bernoulli ballot polling, Lindeman, Stark, election audit, risk limiting

Suggested Citation

Dopp, Kathy Anne, Critique of Lindeman, Stark, Yates’ 'BRAVO: Ballot polling Risk-limiting Audits to Verify Outcomes' and of Ottoboni, Bernhard, Halderman, Rivest & Stark’s 'Bernoulli Ballot Polling: A Manifest Improvement for Risk-Limiting Audits' (June 8, 2019). Available at SSRN: https://ssrn.com/abstract=3393931 or http://dx.doi.org/10.2139/ssrn.3393931

Kathy Anne Dopp (Contact Author)

Independent ( email )

United States

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