Thesis (M.A.)(Information Science)--University of Pretoria, 2002. / Summaries in Afrikaans and English. Includes bibliographical references (leaves 95-104).

Thesis (Ph. D.)--University of Missouri-Columbia, 2003. / Typescript. Vita. Includes bibliographical references (leaves 186-201). Also available on the Internet.

The purpose of the study was to investigate factors that affect students’ perceptions of the use of online peer and self assessment in an online collaborative learning environment, and to explore the impacts of the assessments on the online collaboration of the students. The setting of this study was a university graduate-level online credit course entitled Computer Supported Collaborative Learning (CSCL), in which all course activities were conducted collaboratively through online communications and online peer and self assessment was provided at the end of every group project. Data sources included: face-to-face or online video conferencing interviews with 14 participants; participants’ written reflections; their portfolios; messages that each participant posted to their group online discussion board; and peers’ and self comments on the online peer and self assessment. Data were analyzed using Strauss and Corbin’s (1998) grounded theory approach. Results of the data analysis showed that many factors allowed students to have varied perceptions, attitudes, and feelings in conducting the online peer and self assessment. The factors were grouped into three: learning context, individual differences, and online learning community. Learning context encompassed all parts of the CSCL online course strongly related to the peer and self assessment, including course elements, online assessment system, types of assessment feedback, and graduate school environment. Categories under the factor of individual differences included stringency-leniency in ratings, objectivity of ratings, previous assessment experience, purpose of the assessments, and degree of self-confidence in assessing their own contributions to the group activity. Categories related to the online learning community included group composition, engagement of group members, and sense of community. Additionally, the results revealed the impact of the use of peer and self assessment on the group collaboration in terms of understanding others’ perspectives, reflections on themselves, awareness of the assessments, interpersonal skills for collaboration, accountability, participation, personal criteria for the assessments, level of confidence with the assessments, and group collaboration. / text

published_or_final_version / Education / Master / Master of Science in Information Technology in Education

Web-based instruction provides a new medium for the presentation of instructional activities. In the development of web-based instruction, the designer must realize that the instructional media are merely vehicles for the exchange of ideas. The medium has the capability of addressing individual preferences and styles of learning through its structure and the use of multiple forms of media. Through careful design and adherence to the objectives of instruction and to learners' needs, web-based instruction can provide a successful environment for a variety of learners. In web-based instruction, the design should not be transferred just from one medium to another, but the experience should be redefined with the capabilities of the new medium utilized. Instructional designers must capitalize on the new opportunities that the web provides to learners--to access information from remote locations, to interact with the instruction, to access the instruction at their own pace, to visualize the instruction, and to see the complex relationships in the instruction (Alexander, 1995). Factors in the hypermedia environment, such as visualization, as well as individual student characteristics, such as goal orientation, achievement, and perception, must be taken into account, so the design of web-based instruction enhances the educational opportunities of the learners. ThermoNet was envisioned as a comprehensive supplement for introductory mechanical engineering students. Utilizing many forms of visual media, such as animations, graphics, and video, students would have unlimited access to an interactive web-based environment. This study had four objectives: (1) to determine what students’ characteristics predicted achievement in thermodynamics, (2) to determine what student characteristics predicted the amount of time students spent engaged in ThermoNet, (3) to determine what characteristics impacted students' perceptions of ThermoNet, and (4) to explain the benefits of a web-based instructional environment. The results of this study reveal that web-based instruction may not have a direct impact on students, but the students' goal orientation and preferred mode of learning may impact their achievement. Also, these student characteristics may impact the learner's perception of web-based instruction. More importantly, the results divulge important insights into how web-based instruction can be designed to be a successful learning environment. / text

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published_or_final_version / abstract / toc / Education / Master / Master of Science in Information Technology in Education

published_or_final_version / abstract / toc / Education / Master / Master of Science in Information Technology in Education

published_or_final_version / abstract / toc / Education / Master / Master of Science in Information Technology in Education