The technology of a delivery system is only one of the factors of importance when examining what does and does not work in distance education. The characteristics of the teacher and learner, and the content to be delivered, must also be examined before the delivery system is chosen, since these factors determine final learning outcomes. This paper provides a framework for categorizing distance ...

Psychological essentialism has been subject to much debate. Yet a key implication – that people should defer to experts in categorizing natural kinds – has not been widely examined. Three experiments examine deference in the categorization of chemical kinds. The first establishes borderline cases used in the second and third. These latter show limited deference to experts, and some deference to...

The ICDT Model described in this paper is a framework for categorizing and analyzing Internet-related business strategies. The model provides the basis for a systematic approach (1) to the analysis of how traditional products and services are redesigned in the light of the new opportunities and competitive pressures resulting from the rapid penetration of the Internet, and (2) to identify speci...