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Prior knowledge is often argued to be an important determinant in hypermedia learning, and may be thought of as including two important elements: domain expertise and system expertise. However, there has been a lack of research considering these issues together. In an attempt to address this shortcoming, this paper presents a study that examines how domain(More)
Digital libraries (DL) have become one of the most typical ways of accessing any kind of digitalized information. Due to this key role, users welcome any improvements on the services they receive from digital libraries. One trend used to improve digital services is through personalization. Up to now, the most common approach for personalization in digital(More)
The learning behaviour and performance of 65 postgraduate students using a hypermedia-based tutorial were measured. Data were also obtained on cognitive style, levels of prior experience, motivation, age, and gender. A number of statistically significant interactions were found. Field-dependent/independent cognitive styles were linked to strategic(More)
There has been tremendous growth in Web-based instruction over the past few years. Because the user group of Web-based instruction includes learners from heterogeneous backgrounds, individual differences become an important issue in the development of Web-based instructional programs. Among a variety of individual differences, cogni-tive style is a(More)
This study introduces the development of a Web-based assessment system, the Web-based Assessment and Test Analyses (WATA) system, and examines its impacts on teacher education. The WATA system is a follow-on system, which applies the Triple-A Model (assembling, administering, and appraising). Its functions include (1) an engine for teachers to administer(More)
—The ability of an adaptive hypermedia system to create tailored environments depends mainly on the amount and accuracy of information stored in each user model. Some of the difficulties that user modeling faces are the amount of data available to create user models, the adequacy of the data, the noise within that data, and the necessity of capturing the(More)
South Africa, and the PhD degree, also in Computer Science, from the University of Reading in the United Kingdom. His research interests span multimedia (especially perpetual aspects), Quality of Service, as well as computer networking and security issues. He is a member of the IEEE. His home page is at Her major research interests focus on hypermedia-based(More)