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Full-Text Articles in Evidence

What Is Bayesianism? A Guide For The Perplexed, David H. Kaye Jan 1988

What Is Bayesianism? A Guide For The Perplexed, David H. Kaye

Journal Articles

Bayes' Theorem, Bayesian statistics and Bayesian inference have been the subject of sharp dispute in various writings about legal rules of evidence and proof. This article disentangles the many meanings of "Bayesianism." It sketches several competing interpretations of probability, some leading schools of statistical inference, and the elements of Bayesian decision theory. In the process, it notes the aspects of Bayesian theory that have been applied in studies of forensic proof.


Plemel As A Primer On Proving Paternity, David H. Kaye Jan 1988

Plemel As A Primer On Proving Paternity, David H. Kaye

Journal Articles

Although in the past courts only permitted genetic evidence in paternity suits to prove that an accused man was not the father, with the advent of new genetic tests, which easily can exclude ninety to nitey-five percent of the population in most cases, the supreme courts of Massachusetts, Oregon, and Utah have held that various genetic tests may be used to prove paternity. While a positive move, the admissibility of genetic proof of paternity raises serious questions as to the manner in which this evidence should be presented in court. In the interests of efficiency, some jurisdictions seem to dispense …


The Validity Of Tests: Caveant Omnes, David H. Kaye Jan 1987

The Validity Of Tests: Caveant Omnes, David H. Kaye

Journal Articles

A great debate swirls about the use of polygraph tests in criminal cases. Similar concerns about individual privacy and freedom arise with proposals and projects involving widespread testing of government employees for drugs and deception. Required diagnostic testing for certain diseases - most notoriously, for AIDS - raises similar concerns. Incorrect conclusions about who has taken illicit drugs, who has AIDS, and who is lying can be devastating. Yet, perfect knowledge is unattainable. Errors are inevitable. Questions of what the tendency is for these tests to err, which measures are appropriate for deciding whether to use a screening test, and …


Is Proof Of Statistical Significance Relevant?, David H. Kaye Jan 1986

Is Proof Of Statistical Significance Relevant?, David H. Kaye

Journal Articles

The classic treatises on evidence note that the court or jury must weigh the evidence, and upon weighing it, determine whether the plaintiff or the defendant prevails. Some courts, however, have indicated that statistical evidence should not be admitted unless it is subjected to a procedure known as 'hypothesis testing.' There are many rather mechanical procedures for performing these tests and a number of judges, attorneys, and law professors have suggested that hypothesis testing provides an objective, scientific means of settling disputed questions on which statistical evidence is brought to bear. Yet, many circumstances arise in which courts or administrators …


Probabilities And Proof: Can Hla And Blood Group Testing Prove Paternity?, David H. Kaye, Ira Mark Ellman Jan 1979

Probabilities And Proof: Can Hla And Blood Group Testing Prove Paternity?, David H. Kaye, Ira Mark Ellman

Journal Articles

Advancing medical technology has produced tests which offer the opportunity to resolve paternity disputes with more accuracy than unaided traditional evidentiary techniques are likely to obtain. Because the biology underlying the statistical evidence in paternity cases offers a wealth of previously unavailable information which is certain to revolutionize the adjudication of paternity suits, but it is important that the courts not become so mesmerized by these new sources of evidence that they neglect to subject them to traditional principles of evidence applicable to all testimony. Additionally, for some time scholars have disagreed on the proper application of a probability formula …