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. Sonderforschungsbereich 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.

• Dokumententyp: Paper
• Keywords: missing data mechanism, odds-ratio, simulation experiment, non-MAR
• Fakultät: Mathematik, Informatik und Statistik > Statistik > Sonderforschungsbereich 386 ; Sonderforschungsbereiche > Sonderforschungsbereich 386
• Themengebiete: 500 Naturwissenschaften und Mathematik > 510 Mathematik
• Sprache: Englisch