Mondrian is state-of-the-art statistical data visualization software featuring modern interactive visualization techniques for a wide range of data types. This article reviews the capabilities, functionality, and interactive properties of this software package. Key features of Mondrian are illustrated with data from the Programme for International…

INTEGRITY, an item analysis and statistical collusion detection (answer copying) online application, was reviewed. Features of the software and examples of program output are described in detail. INTEGRITY was found to be easily utilized with an abundance of well-organized documentation and built-in features designed to guide the user through the…

MicroFACT 2.0, an item factor analysis computer program, was reviewed. Program features were described in detail, as well as the program output. The performance of MicroFACT was evaluated on a Windows 2000, Pentium III platform. MicroFACT was found to be fairly easy to use, and one problem encountered was reported. Program requirements and…

The author analyzes properties of mutual information between dichotomous concepts and test items. The properties generalize some common intuitions about item comparison, and provide principled foundations for designing item-selection heuristics for student assessment in computer-assisted educational systems. The proposed item-selection strategies…