Reports on the development of a composite learner model for adaptive tutoring systems that combines a model of learner attributes with a simple overlay model of the learner's domain knowledge state. The system is able to select the optimal form of learning material to be presented for the subject. (MJP)

Describes a study conducted at the University of Sheffield (United Kingdom) that measured the learning behavior and performance of 65 postgraduate students using a hypermedia-based tutorial. Considers cognitive style, levels of prior experience, motivation, age, gender, and navigation patterns. (Author/LRW)