Accession Number:

AD0251139

Title:

CALIBRATION OF QUALITATIVE OR QUANTITATIVE VARIABLES FOR USE IN MULTIPLE-GROUP DISCRIMINANT ANALYSIS

Descriptive Note:

Corporate Author:

TRAVELERS RESEARCH CENTER INC HARTFORD CT

Personal Author(s):

Report Date:

1961-01-01

Pagination or Media Count:

1.0

Abstract:

Three limitations on the application of multiple discriminant analysis in certain statistical problems are discussed. These are 1 difficulty in including qualitative antecedent variables in the analysis, 2 failure of quantitative variables to discriminate in a linear fashion, and 3 multivaluedness of antecedent variables within consequent groups. A technique for optimal assignment of numerical scale values to antecedent classes is proposed for overcoming these limitations. The technique evolves essentially as a calibration procedure. It depends only upon and exhausts all the information in the antecedent-class, consequentgroup contingency table. A straightforward procedure for carrying out the computations is outlined in detail. The problem of separate vs simultaneous calibration is resolved, and the implications of the use of calibrated variables in a screening selection of antecedent variables procedure examined. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE