Chapter 3. Two-way contingency tables

The analysis of two-way frequency tables concerns the association between two variables. Different specialized displays are focused on visualizing an odds ratio (2 x 2 tables), or the general pattern of association, or the agreement between row and column categories.

3.1. Introduction 3.2. Tests of association for two-way tables 3.2.1. Notation and terminology 3.2.2. 2 by 2 tables 3.2.3. Larger tables---Overall analysis 3.2.4. Tests for ordinal variables 3.2.5. Sample CMH Profiles 3.3. Stratified analysis 3.3.1. Assessing homogeneity of association 3.4. Fourfold display for 2 x 2 tables 3.4.1. Confidence rings for odds ratio 3.4.2. The FOURFOLD program 3.4.3. Stratified analysis for 2 x 2 x k tables Example 3.XX: Toxaemic symptoms in pregnancy 3.5. Sieve diagrams 3.5.1. The SIEVE program 3.5.2. Larger tables 3.6. Association plots 3.7. Observer agreement 3.7.1. Measuring agreement 3.7.2. Observer Agreement Chart 3.7.3. Observer bias 3.7.4. The AGREE program 3.8. Trilinear plots 3.9. Chapter summary