ERIC Number: ED373747
Record Type: Non-Journal
Publication Date: 1994
Reference Count: N/A
Visualization Techniques for Examining Learner Interactions with HyperMedia Environments.
Orey, Michael A.; Nelson, Wayne A.
Methods are described for visualizing and characterizing user interactions with hypermedia systems; they have been found to be effective in several developmental and evaluation studies. Analyzing the patterns of user interaction makes it possible to evaluate the design and usefulness of such systems. Path algebras can be used to describe and compare routes users take through hypermedia systems. Directed graphs are another method of constructing a network representation of user paths using the Pathfinder algorithm. Another approach is to construct an image based on interaction data with the Toolbook program. Fifty-seven data files from a previous study were entered into the Toolbook program to generate a map of each user's interaction. Six gifted middle-school students, six teachers, and six doctoral students in instructional technology were asked to categorize the images and to associate them with course grades of the users. Although subjects could not generally associate images with grades, they were able to place them in identifiable categories, which suggests the potential of the method for depicting user paths. Nine figures illustrate the approaches. (Contains 16 references.) (SLD)
Descriptors: Algebra, Classification, Educational Environment, Elementary Education, Elementary School Teachers, Evaluation Methods, Gifted, Grades (Scholastic), Graduate Students, Graphs, Higher Education, Hypermedia, Interaction, Middle School Students, Middle Schools, User Needs (Information), Visualization
Publication Type: Reports - Research; Speeches/Meeting Papers
Education Level: N/A
Authoring Institution: N/A