The Contributions of William Cochran to Categorical Data Analysis.
Abstract
The paper reviews the contributions of Wm. Cochran to the analysis of categorical data, focussing on: (a) the distribution of chi-square test statistics in the presence of small expectations, and the correction for continuity. (b) the Q-test for comparing percentages in matched samples. (c) methods for strengthening chi-square-tests. (d) the Cochran test for combining results from several 2x2 tables. Some links are made between Cochran's work and recent literature on the analysis of categorical data using loglinear models. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1981
- Accession Number
- ADA111014
Entities
People
- Stephen E. Fienberg
Organizations
- Carnegie Mellon University