The Reduced Reparameterized Unified Model (Reduced RUM) is a diagnostic classification model for educational assessment that has received considerable attention among psychometricians. However, the computational options for researchers and practitioners who wish to use the Reduced RUM in their work, but do not feel comfortable writing their own…

Systems incorporating two advanced technologies, hypermedia systems and intelligent tutors, are examined with respect to their potential impact on science education. The conceptual framework underlying these systems is discussed first. Applications of systems are then presented with examples of each in operation within the context of science…

Research on structural learning theory is reviewed as a base for designing computer-assisted instruction programs. An intelligent "Rule Tutor" emphasizing diagnosis and remediation for whole number concepts is described. (MNS)

This handbook provides information about an innovative model, Partners for Valued Youth (PVY), that encourages "at-risk" students to stay in school and to set broader goals for themselves through a cross-age tutoring experience in which at-risk middle school students tutor younger, elementary school students. After a preface, the…