Managers of public libraries have been presented with a new set of challenges in the day-to-day operations of public libraries. These include their ability to serve as change agents as they manage the use of continuing online distance learning (CODL) for staff. This online tool may provide staff opportunities for on-the-job learning, yet for managers and managerial staff little is known about how the tool impacts their role in light of the changes. This research investigates the perceptions of 103 Northeast Texas Library System managers and managerial staff about their role as a change agent in the use of CODL using an exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) to determine the outcome. Administrators from urban, suburban, and rural public libraries were surveyed using a General Training Climate Scale to explore three constructs: extent of the manager role, manager role, and use of CODL. Data analysis was performed using exploratory and confirmatory analysis to support the theoretical model. An altered model was tested and confirmed through model fit indices.

This study explores the challenges faced by high school science learners when they use English language as a medium of instruction in a South African context. Questionnaires were administered and focus group interviews were conducted with both science learners and science educators. Results indicated that learners are challenged in a number of ways when English is used to teach science especially if English is not their home language. Both learners and educators prefer to be taught and teach science respectively in English though ideally learners would like to be taught in their home languages. To overcome these challenges a home language scientific register should be drawn to cater for all learners’ home language, learners should also be proficient in English or language of science instruction. / Science and Technology Education / M. Ed. (Natural Science Education)

The integration of modern science and indigenous knowledge systems in the science education curriculum for South African schools represents social justice for the majority of South Africans as they determine the knowledge necessary for themselves and for future generations in the new South Africa. An exploratory research reveals tension and a dichotomous relationship between modern science and IKS, caused by false hierarchies that are influenced by factors such as colonialism, capitalism and modernisation to the exclusion of the core values held by indigenous people in their relationship with nature. The thesis demonstrates that the integration requires an epistemology that puts humanity first and a framework that accommodates both ways of knowing. This should allow for the best in the two systems of knowing to serve humanity in a dialogical manner. / Educational Studies / M. Ed. (Philosophy of Education)

This mixed methods dissertation study explored how secondary school educators in specific K-12 competition programs recruited and deployed STEM professional volunteers. The study explored which practices were viewed as most important, and how practices related to constructivist pedagogy, all from the viewpoint of educators. The non-positivist approach sought new knowledge without pursuing generalized results. Review of the literature uncovered extensive anecdotal information about current practices, and suggested that large investments are made in engaging volunteers. One National Science Foundation-sponsored study was identified, and its recommendations for a sustained research agenda were advanced. Three study phases were performed, one to explore practices and operationalize definitions, a second to rate practice's importance and their relation to pedagogy, and a third to seek explanations. Educators preferred recruiting local, meaning recruiting parents and former students, versus from industry or other employers. Most educators preferred volunteers with mentoring skills, and placing them in direct contact with students, versus deploying volunteers to help with behind-the-scenes tasks supporting the educator. Relationships were identified between the highest-rated practices and constructivism in programs. In STEM professional volunteers, educators see affordances, in the same way a classroom tool opens affordances. A model is proposed which shows educators considering practicality, pedagogy, knowledge and skills, and rapport when accessing the affordances opened by STEM professional volunteers. Benefits are maximized when programs align with strong industry clusters in the community.

The purpose of the research was to investigate the effectiveness of using multimedia as a means of teaching physical science to learners. The underlying theoretical assumption was that a multimedia presentation would help to reduce the cognitive load experienced by learners when they learn physical science content, compared to a traditional mode of presentation, and that this reduction may have a positive effect on the ease with which they master the content. Physical science learners in Grade 11 viewed a presentation consisting of multimedia screens and screens depicting the learning content in a traditional layout – in order to compare the level of knowledge gained as well as the cognitive load experienced for the multimedia and traditional instructions. Pre- and post-test questionnaires were used to determine the knowledge gained, while cognitive load was measured using a dual-task methodology. A multivariate analysis of variance was used to analyse the data. The results did not reveal a statistically significant increase in knowledge gained via the multimedia approach when compared to the traditional mode of instruction, but when focussing the analysis on learners with a lower-knowledge base in physical science though, statistically significant results were found. However, no significant results were found to support the hypothesis that multimedia would help to reduce learners’ cognitive load. It was concluded that the multimedia design principles are more effective in increasing knowledge for physical science learners of low-knowledge than traditional instructional designs. / M. Sc. (Psychology)

The aim of the study was to identify the factors that have an influence on the completion rates of undergraduate students in the fields of science, technology, engineering and mathematics (STEM). Using Tinto's retention rate theory as the theoretical foundation, data were collected from freshman who were enrolled in the years 2005 to 2008. Results showed gender and first-generation status were significant predictors of STEM completion and time taken to complete the degree. Institutional bias played a role in race/ethnicity not being a factor affecting completion rates, as this study was conducted at a Predominantly White Institution. SAT scores and first and second-year college GPA showed to have the most prominent influence on both STEM completion rate and time taken to complete the degree. Females with higher first-year college GPA and higher high school rank finished faster. Similar results were found with first-generation students as well. Students belonging to ethnic minority groups with higher SAT scores and college GPA had greater success in STEM fields as well. The study results can be used to increase completion rates of underrepresented students in the STEM fields, given what we know about the interactions between underrepresented student groups and the most important predictors.

Bibliography: leaves 131-155 / The central objective of the present research was to provide a better understanding of stereotype threat and its underlying effects on female high school students’ intention to major in Science, Technology, Engineering and Mathematics (STEM) fields. Specifically, the study investigated the intervening effects of mathematics/science self-efficacy and the conditional effects of perceived social support with regards to the implications of stereotype threat. For this reason, three studies were conducted. Participants were female (Study 1 – 3) and male (Study 1) high school students from Harer and Dire Dawa Regions, located in the Eastern part of Ethiopia. Study 1 provided evidence that both female and male participants were well aware of the existence of the negative stereotype about females’ mathematics/science ability. Participants reported that the Ethiopian society attributes less mathematics/science ability to females than to males. Although female participants were well aware of the existence of the negative stereotype about females’ mathematics and science ability, they did not endorse it. Study 2 showed experimentally that stereotype threat reduces indeed females’ intention to major in STEM fields. Moreover, Study 2 revealed that mathematics/science self-efficacy mediated the relationship between stereotype threat and females’ intention to major in STEM fields. Study 3 addressed the role of social support. The results revealed that female participants who felt socially supported in their intention to major in a STEM field were found to be resistant to the negative effects of stereotype threat. In other words, it is the interaction between stereotype threat and the lack of social support that reduces females' intention to major in STEM fields. The findings of the present study are discussed in relation to stereotype threat theory and related literature as well as in relation to potential educational interventions relevant for the Ethiopian context. / Psychology / D. Phil. (Psychology)

Several studies and reports have indicated that grade 09 learners are underperforming in science. The underperformance of learners in science is very concerning and has evoked research interests into teaching strategies that can be used to improve the performance of learners in science. This study investigated the impact of student teams achievement divisions (STAD) cooperative instructional strategy on the performance of grade 09 learners in science. A mixed method approach specifically quasi-experimental design and interviews were used to collect data. The population for the study composed of grade 09 learners from Baltimore circuit in Limpopo. The sample consisted of sixty learners from two purposively selected secondary schools. The dependent samples t-test was used to analyze the data collected. The results revealed that student teams achievement divisions (STAD) cooperative instructional strategy resulted in better performance of learners in science than traditional teaching method. In addition, learners expressed an increased interest, motivation and self-efficacy after exposure to cooperative learning. / Science and Technology Education / M. Ed. (Natural Science Education)

In the majority of schools gifted learners are given the same quantity and quality of academic work as their non-gifted classmates. In some cases gifted learners are left to look after themselves when they are done with class work or worse still, asked to teach their non-gifted classmates. Some educationists advocate for a differentiated curriculum between gifted and non-gifted learners. This study sought to establish the impact of enrichment programs to gifted Science learners. Forty gifted learners were identified and drawn equally into one of the two groups — experimental or control. These learners wrote a pre-test after which the twenty learners in the experimental group received enrichment. The forty learners then wrote the same post-test to assess their understanding of the concepts learnt. The cycle was repeated but with a different topic. Learners’ marks were compared and it emerged all twenty learners in the experimental group performed better than those in the control group. Gifted learners should therefore be given enrichment as it deepens, broadens, and sharpens their understanding of concepts. / Science and Technology Education / M. Ed. (Natural Science Education)

Girls who have high aptitude in math are not entering careers related to science, technology, engineering, and math (STEM fields) at the same rate as boys. As a result, female students may have fewer employment opportunities. This study explores one potential way to reduce the gap between male and female career aspirations and choices. Specifically, it looks at the impact of bringing women with careers in math- and science-related fields into high school classrooms as role models. The study uses surveys to measure pre- and post-visit perceptions of science and scientific work as well as student's short-term interest in math and science courses. In addition to these surveys, student comments were collected about the role model visits. While the overall study yielded little statistical significance, it also indicated that the role model visits had some impact on student perceptions and choices and raised questions that warrant further study.