Graphical modeling as a form of multivariate analysis has turned out to be a capable tool for the detection and modeling of complex dependency structures. Statistical models are related to graphs, in which variables are represented by points and associations between each two of them as lines....

Categorical data occur in a wide range of statistical applications. If the data are observed in matched pairs, it is often of interest to examine the differences between the responses. We concentrate on tests of axial symmetry in two-way tables. A commonly used procedure is the Bowker test which...

Am Beispiel eines Einzelfalles werden in diesem Buch die Stationen einer schriftlichen Befragung von der ersten Idee über die Eingabe der Daten bis hin zur statistischen Auswertung und Berichterstattung nachgezeichnet. Das Buch zeigt konkret, worauf man beim schriftlichen Befragen achten muss,...