Quantification methods

Date of publication: September 1, 1998

Author: Masahiko Sato

Abstract:

Hayashi’s quantification methods are multivariate analysis techniques dealing with qualitative data, which were developed by Dr. Chikio Hayashi, former Director-General of the Institute of Statistical Mathematics (Tokei-Suri Kenkyuzyo), in the late 1940s and 1950s. The methods have been, and are, widely used for academic and business fields including marketing research in Japan, hence their inclusion here. The methods traditionally employ the following terminology: 1. ‘external criterion’ for dependent variable; 2. ‘explanatory variables’ for independent variables; 3. ‘items’ for question items in the questionnaire; and 4. ‘categories’ for alternative answers to the question.

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