Educational testing has been criticized for its disconnect from modern cognitive science and its limited role in improving instruction and student learning. Reform efforts emphasize the need for testing to provide specific diagnostic insights into students' skills and knowledge. Cognitive diagnosis (CD), an emerging paradigm in educational…

This paper defines Bayesian network models and examines their applications to IRT-based cognitive diagnostic modeling. These models are especially suited to building inference engines designed to be synchronous with the finer grained student models that arise in skills diagnostic assessment. Aspects of the theory and use of Bayesian network models…

Stresses the need to abolish IQ testing in the schools because such tests serve no purpose and block the implementation of other strategies that can benefit students. A shift to Binet's remedial paradigm is recommended as essential to allow testing and assessment that benefits all students. (SM)