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Too Many Probabilities: Statistical Evidence Of Tort Causation, David W. Barnes

Law and Contemporary Problems

Medical scientific testimony is often expressed in terms of two different probabilities: 1. The increased probability of harm if a person is exposed, for example, to a toxin. 2. The observed relationship is an artifact of the experimental method. This article demonstrates that neither probability, taken alone or together, measures whether the "preponderance of the evidence" test is met.