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Hershkovitz, Arnon; Nachmias, Rafi – Internet and Higher Education, 2011
This research consists of an empirical study of online persistence in Web-supported courses in higher education, using Data Mining techniques. Log files of 58 Moodle websites accompanying Tel Aviv University courses were drawn, recording the activity of 1189 students in 1897 course enrollments during the academic year 2008/9, and were analyzed…
Descriptors: Higher Education, Persistence, Internet, Data Processing
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Cohen, Anat; Nachmias, Rafi – International Journal on E-Learning, 2012
This paper describes implementation of a quantitative cost effectiveness analyzer for Web-supported academic instruction that was developed in our University. The paper presents the cost effectiveness analysis of one academic exemplary course in Life Science department and its introducing to the course lecturer for evaluation. The benefits and…
Descriptors: Biological Sciences, Science Departments, Cost Effectiveness, Costs
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Hershkovitz, Arnon; Azran, Ronit; Hardof-Jaffe, Sharon; Nachmias, Rafi – Internet and Higher Education, 2011
This study presents an empirical investigation of online hierarchical repositories of items presented to university students in Web-supported course websites, using Web mining methods. To this end, data from 1747 courses were collected, and the use of online repositories of content items in these courses was examined. At a later stage, courses…
Descriptors: Information Retrieval, Data Collection, Course Content, Web Based Instruction
Cohen, Anat; Nachmias, Rafi – European Journal of Open, Distance and E-Learning, 2009
This paper describes the implementation of a quantitative cost effectiveness analyzer for Web-supported academic instruction that was developed in Tel Aviv University during a long term study. The paper presents the cost effectiveness analysis of Tel Aviv University campus. Cost and benefit of 3,453 courses were analyzed, exemplifying campus-wide…
Descriptors: Cost Effectiveness, Models, Courses, Web Based Instruction
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Cohen, Anat; Nachmias, Rafi – Internet and Higher Education, 2011
This paper focuses on a Web-log based tool for evaluating pedagogical processes occurring in Web-supported academic instruction and students' attitudes. The tool consists of computational measures which demonstrate what instructors and policy makers can learn about Web-supported instruction through Web-usage mining. The tool can provide different…
Descriptors: Foreign Countries, Feedback (Response), Student Attitudes, Outcomes of Education
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Soffer, Tal; Nachmias, Rafi; Ram, Judith – Educational Technology & Society, 2010
This paper describes a study that focused on long-term web-supported learning diffusion among lecturers at Tel Aviv University (TAU), from an organizational point of view. The theoretical models we used to examine this process are Rogers' model for "Diffusion of Innovation" (1995) and Bass's "Diffusion Model" (1969). The study…
Descriptors: Models, Institutional Evaluation, Web Based Instruction, Educational Theories
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Nachmias, Rafi; Ram, Judith – International Review of Research in Open and Distance Learning, 2009
This paper describes the scope and outcomes of Virtual TAU, a campus-wide project that aims to integrate information and communication technologies into the academic instruction at Tel Aviv University (TAU). It provides data, insights, and conclusions drawn from various research and evaluation studies that were conducted at the university during…
Descriptors: Cost Effectiveness, Technology Integration, Information Technology, Technology Uses in Education
Hershkovitz, Arnon; Nachmias, Rafi – International Working Group on Educational Data Mining, 2009
The purpose of this study is to investigate the consistency of students' behavior regarding their pace of actions over sessions within an online course. Pace in a session is defined as the number of logged actions divided by session length (in minutes). Log files of 6,112 students were collected, and datasets were constructed for examining pace…
Descriptors: Foreign Countries, Psychometrics, Comparative Analysis, Correlation
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Nachmias, Rafi – Internet and Higher Education, 2002
Discussion of the use of the Internet as an instructional tool in higher education focuses on a three-level research framework for the study of campus-wide academic instruction using the Web. Describes how the framework was used for a project at Tel-Aviv University to integrate the Internet into traditional instruction. (Contains 56 references.)…
Descriptors: Conventional Instruction, Foreign Countries, Higher Education, Internet
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Nachmias, Rafi; Shany, Nehama – Journal of Educational Computing Research, 2002
Examines student learning in virtual courses and the relationship between their performance and thinking styles based on a study of Israeli junior high school students. Topics include students' scholastic performance and grades; successful Web searches; completion of assignments; use of asynchronous communication channels; student attitudes;…
Descriptors: Academic Achievement, Assignments, Cognitive Style, Foreign Countries