Basic fallacies in the formulation of the paternity index

C. C. Li, A. Chakravarti

Research output: Contribution to journalArticle

Abstract

Some basic fallacies in the computation of the paternity index have been pointed out. The general finding that the true fathers' mean paternity index is greater than that of nonfathers is a necessary consequence of an algebraic identity, having nothing to do with paternity or nonpaternity. It has also been shown that the paternity index is not a likelihood ratio as claimed. The fact that a paternity index may frequently take values less than unity leads to absurd conclusions regarding the probability of paternity. A formula relating prior and posterior probabilities of paternity, based solely on genetic marker testing results (exclusion or nonexclusion), is reiterated as a substitute for the current paternity index.

Original languageEnglish (US)
Pages (from-to)809-818
Number of pages10
JournalAmerican Journal of Human Genetics
Volume37
Issue number4
StatePublished - 1985
Externally publishedYes

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Genetic Testing
Genetic Markers
Fathers

ASJC Scopus subject areas

  • Genetics

Cite this

Basic fallacies in the formulation of the paternity index. / Li, C. C.; Chakravarti, A.

In: American Journal of Human Genetics, Vol. 37, No. 4, 1985, p. 809-818.

Research output: Contribution to journalArticle

Li, CC & Chakravarti, A 1985, 'Basic fallacies in the formulation of the paternity index', American Journal of Human Genetics, vol. 37, no. 4, pp. 809-818.
Li, C. C. ; Chakravarti, A. / Basic fallacies in the formulation of the paternity index. In: American Journal of Human Genetics. 1985 ; Vol. 37, No. 4. pp. 809-818.
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