Relationships among Test Factor Structure, Test Hierarchical Structure, and Test Inter-Item Dependency Structure

Abstract

In previous research, no relationship was found be tween test factor structure and test hierarchical struc ture. This study found some correspondence between test factor structure and test inter-item dependency structure, as measured by a log-linear model. There was an inconsistency, however, which warrants further study: More significant two-item interactions were found for the set of items that had been found to be most heterogeneous by latent trait techniques, rather than for the more homogeneous set of items.