Identifying Missing Data Mechanisms in (2 x 2)-Contingency Tables

Nittner, T. und Toutenburg, Helge (2004): Identifying Missing Data Mechanisms in (2 x 2)-Contingency Tables. Collaborative Research Center 386, Discussion Paper 373

Abstract

Consider the sample of two binary variables X and Y with some missing structure within X or Y. The knowledge about the corresponding values of the observed covariate allows to play through all possible `originally' complete data sets. After defining the notation, including some theoretical work, a test for non--MCAR within the complete case table is presented. Simulating all possible tables enables some testing on non--MAR. A simulation experiment is used to illustrate this context.

• Item Type: Paper
• Keywords: missing data mechanism, odds-ratio, simulation experiment, non-MAR
• Faculties: Mathematics, Computer Science and Statistics > Statistics > Collaborative Research Center 386; Special Research Fields > Special Research Field 386
• Subjects: 500 Science > 510 Mathematics
• Language: English