In the mid 1950s S. N. Roy and his students contributed two landmark articles to the contingency table literature (Roy and Kastenbaum 1956, Roy and Mitra 1956). The first article generalized concepts of interaction from 2×2×2 contingency tables to three-way tables of arbitrary size and to larger tables. In the second article, which is the source of our primary focus, various notions of independ...

The GermanMicrocensus (MC) is a large scale rotating panel survey over three years. The MC is attractive for longitudinal analysis over the entire participation duration because of the mandatory participation and the very high case numbers (about 200 thousand respondents). However, as a consequence of the area sampling that is used for the MC , residential mobility is not covered and consequent...

The transport of bacterial strain DA001 was examined in packed quartz sand under a variety of environmentally relevant ionic strength and flow conditions. Under all conditions, the retained bacterial concentrations decreased with distance from the column inlet at a rate that was faster than loglinear, indicating that the deposition rate coefficient decreased with increasing transport distance. ...

BACKGROUND Methods for linking real-world healthcare data often use a latent class model, where the latent, or unknown, class is the true match status of candidate record-pairs. This commonly used model assumes that agreement patterns among multiple fields within a latent class are independent. When this assumption is violated, various approaches, including the most commonly proposed loglinear ...

Schizophrenia is considered a lifetime disorder, but in practice its diagnosis in a given patient can change over time. This study used a large clinical data that consisted of 4725 adult inpatients who had been admitted to hospitals twice to study the temporal stability of diagnosis of schizophrenia and to examine the change in the diagnosis between the two occasions. First, we measured tempora...

Recent neurobiological models of ADHD suggest that deficits in different neurobiological pathways may independently lead to symptoms of this disorder. At least three independent pathways may be involved: a dorsal frontostriatal pathway involved in cognitive control, a ventral frontostriatal pathway involved in reward processing and a frontocerebellar pathway related to temporal processing. Impo...

To evaluate the impact cirrhosis has on survival the records of 40 cirrhotic trauma victims from the registries of two Level 1 trauma centers were reviewed and probability of survival calculated using the TRISS methodology. Mechanism of injury, anatomic location, involvement of single or multiple sites, presence of ascites, elevations in serum glutamic oxaloacetic transaminase (SGOT), alkaline ...

In square contingency tables, analysis of agreement between row and column classifications is interest. For nominal categories, kappa co- efficient used to summarize the degree two raters. Numerous extensions generalizations statistics have been pro- posed in literature. addition coefficient, several authors use terms log-linear models. This paper focuses on approaches study interrater for tabl...