THE K-COEFFICIENT, A PEARSON-TYPE SUBSTITUTE FOR THE CONTINGENCY COEFFICIENT

Abstract

The Pearson product-moment correlation coefficient is recognized as the basic equation for relationship. Well-known and widely used derivatives of the Pearson equation include the point-biserial correlation, the Spearman rank- difference correlation, the fourfold point correlation, and the correlation ratio. Expression of relationships between categorical variables has previously been possible only by means of the contingency coefficient. This paper describes an extension of Pearson's basic equation to provide a measure of relationship between two categorical variables, the 'K' coefficient, which avoids many of the disadvantages inherent in the contingency coefficient.

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Document Details

Document Type
Technical Report
Publication Date
May 25, 1965
Accession Number
AD0622776

Entities

People

  • Norman E. Lane
  • Robert J. Wherry Jr.

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Aviation Medicine
  • Classification
  • Coefficients
  • Contractors
  • Contracts
  • Correlation Analysis
  • Data Science
  • Equations
  • Factor Analysis
  • Information Science
  • Mathematics
  • Naval Aviation
  • New York
  • Security
  • Simultaneous Equations
  • Standards
  • Statistical Analysis

Readers

  • Calculus or Mathematical Analysis
  • Regression Analysis.