This study investigated how macro—implementation occurs within the British Columbia Ministry of Education. In particular, the Social Studies Curriculum Guide. Grade One-Grade Seven (1983) and related student textbooks, teacher videotapes, evaluation reports and other implementation support materials were examined to determine how the policy "critical thinking and problem-solving skills," a key component of the curriculum, was interpreted. Interviews (N=15) with relevant Ministry coordinators, committee chairpersons and members, and authors/ editors/consultants were audiotaped and later transcribed for analysis in light of the existing macro-implementation literature. It was found that the curriculum lacked clarity, was perceived variously by different policy developers, and was interpreted in discrepant ways in implementation materials. Ministry efforts to implement "critical thinking and problem-solving skills" appear to have been thwarted by lack of initial policy clarity; inconsistent liaison within the Ministry to facilitate shared expertise, understanding, and positive rapport; as well as insufficient attention to capacity building, particularly of Ministry coordinators responsible for monitoring each phase of the policy. Capacity needs highlighted in this study included adequate working conditions for developing complex policy, knowledge of the policy and its implications, as well as understanding the process of change. Future implementation prospects, may profit from research which focusses on exemplary ministry macro-implementation plans and those factors which enhance capacity building, liaison, and policy clarity. / Education, Faculty of / Curriculum and Pedagogy (EDCP), Department of / Graduate

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Pupils. teachers. supervisors, administrators, parents and other citizens have always needed to work together for better educational programs in their communities. Curriculum planning and improvement in our complex and changing world have been a necessity and a cooperative responsibility.

Globally oriented content and perspectives are urgently needed in United States secondary classrooms as the world continues to become more interconnected. U.S. secondary students are typically exposed to global topics in world history courses. There is limited research on the intersection of global education and world history, particularly within empirical studies concerning teachers’ positionalities and practice. This qualitative study explores this gap by asking: How do self-identified globally oriented world history teachers’ positionalities influence their curricular and pedagogical decisions? The sub-questions are: What identities, experiences, and surrounding social structures shape teachers’ understanding of themselves as global educators? Where/when/how do world history teachers position themselves within the knowledge, material, and teaching about the world? This study, utilizing interviews, elicitation tasks (concept mapping, identity card sort, global image ranking), and observations of teaching, investigated eight globally oriented New York City public school world history teachers. Findings suggest reconceptualizing teacher positionalities to include worldviews and place-based experiences abroad in addition to identities, subjectivities, and contexts. These intertwining aspects of world history teachers’ positionalities influenced their practice to teach with a global orientation in a world history classroom. Four worldviews were significant in how these teachers framed the world for themselves and their students: interconnectedness, justice-orientations, cosmopolitanism, and critical perspectives. Place-based experiences abroad were significant aspects to their positionalities in that they gained content knowledge of the place while confronting their social positions and privileges. These engagements contributed to the ways in which they approached their knowledge construction of the world in their approaches to curriculum and teaching. I suggest these aspects of teacher positionalities be integrated into future research in global education and social studies teacher education programs.

The term meta-analysis refers to the quantitative process of statistically combining results of studies in order to draw overall trends found in a research literature. This technique has become the preferred form of systematic review in fields such as social science and education. As the method has become more standard, the number of large meta-analyses has expanded in these fields as well. Accordingly, the purpose of meta-analysis has expanded to explaining the variation of effect sizes across studies using meta-regression. Unfortunately, missing data is a common problem in meta-analysis. Particularly in meta-regression, missing data problems are frequently related to missing covariates. When not handled properly, missing covariates in meta-regression can impact the precision of statistical inferences and thus the precision of systematic reviews. Ad hoc methods such as complete-case analysis and shifting units of analysis are the most common approaches to address missing data in meta-analysis. These techniques, to some extent, ignore missing values which in turn can lead to biased estimates. The use of model-based methods for missing data are more justifiable than ad hoc approaches. However, its application in meta-analysis is very limited. Multiple imputation is one of these approaches. Its precision relies mainly on how missing values are imputed. Standard multiple imputation approaches do not consider imputations that are compatible with meta-regression and thus can still yield biased estimates. This dissertation addresses these issues by firstly assessing the performance of standard multiple imputation methods in the meta-regression context through a simulation study. To later develop compatible multiple imputations that accommodate features of meta-regression assuming dependent effect sizes. Results show that even though multiple imputation methods can accurately estimate missing data in meta-regression, its accuracy decreases with larger missingness rates and when missingness is strongly related to effect sizes. This study also revealed that, in general, the developed compatible multiple imputation method outperforms standard multiple imputations. These findings also hold for cases in which missingness in a covariate is highly related to the effect size estimates. Finally, an algorithm that allows practitioners to apply compatible imputations in meta-regression was implemented using the R software language.

Successful tertiary-level education in the biological sciences is crucially important in providing a high-level work force for a number of careers. The government of South Africa has realised the strong positive correlation that exists between the availability of scientific and technical human resources, the viability of the economy, and the well-being of its people. However, despite government policies and tertiary institutions efforts in South Africa to increase enrolment and improve students’ throughput, the pass rates at first-year university level remains low, a source of concern for the government and affected institutions. The low pass rates of first-year students in the biological sciences at tertiary institutions constituted the problem which prompted the study. The aim of this study was to identify factors perceived to be essential for academic success in first-year biological sciences at the University of the Witwatersrand, South Africa, and to investigate the effects of a computer-based programme designed to address some of the factors. The programme was developed to help students increase their awareness of appropriate attitudes, metacognitive knowledge and work-habits, all of which contribute to achieving academic success. The study had two main phases, a “diagnostic” and a “therapeutic” phase. The research methods adopted in this mixed-methods study included the use of interviews and questionnaires to elicit information from various stakeholders. In the diagnostic phase, interviews were used, first to elicit the perceptions of 10 lecturers teaching first-year biology courses, 8 Honours students, and 17 undergraduates, at the University of the Witwatersrand, about factors they believed influenced academic success. The five top-ranked factors influencing academic success identified were being motivated, using appropriate study habits, having positive attitudes to studies, asking for help and clarification, and managing time effectively. Whilst the above-mentioned were the common factors identified by the three samples, each stakeholder group made its distinctive contributions. Secondly, to obtain a wider perspective of first-year students’ views, a questionnaire focussing on attitudes, work-habits and metacognition was administered to two large groups of students (n=145; n=100) at the end of two consecutive years. In this replicate study the three top-ranked factors in both studies had to do with academic behaviours: attending all lectures; taking accurate notes; and asking for help and clarification when a topic was not understood. Eighty-three first-year students provided data on students’ changing perceptions at the beginning and end of the year. This data was used to determine if, without an intervention, a year at the university influenced students’ perceptions about appropriate factors affecting academic success. Rasch analytical techniques applied to 27 items in the questionnaire yielded 11 responses which were statistically significantly different. These responses were later addressed in the package because students needed this information from the start of their studies. During the therapeutic phase a computer-based instructional programme, Bioskills, was designed to inform student users about attitudes, behaviours and metacognitive factors the literature and stakeholders said were important for academic success. Six experts and 75 first-year students provided comments as part of a formative evaluation during its development. These were used to modify the screen design, user interface and content of the alpha version of the package. Bioskills proved very easy to use, even for first-time computer users. A case-study approach was used to explore the experiences of eight students with Bioskills, in particular its influence on their attitudes, metacognition and academic behaviours. All eight students made positive comments, saying it was relevant, informative and encouraging. Six out of the eight recommended it be used much earlier in the year, whilst two said it took too much time to work through. Without trying to imply causation the four students who used Bioskills three or four times passed the course. Students’ metacognitive gains were reported in terms of metacognitive knowledge [what students know about successful learning] and metacognitive control [the application of the knowledge]. The small sample size (n=8) made it difficult to detect trends. However, individual students mentioned new attitudes (being more determined, showing more interest in the topic and applying more positive attitudes to their studies) which they claimed they learned from using Bioskills. Attribution is traditionally explained as a search for understanding of causes. Students’ attributions on specific academic tasks are therefore important in the remediation efforts by educators. Of the 38 factors identified by the eight students, as causes for poor performance in their June examination, before they used Bioskills, almost two-thirds, when categorized using attribution dimensions, were of internal but unstable dimensions. The literature suggests it is easier to remediate causes that are internal and unstable rather than external and stable. After using Bioskills, four of the eight students who performed well at the end of a teaching block ascribed their success to the effort they had put in, whilst two of the four who did not do well, blamed external factors (the length of the test, the question structure) as contributing to their poor results. The important contribution this study made was the theoretical framework developed which expanded the existing attitude-behaviour models by adding additional constructs and showing the relationships between them. In addition, a summary of factors mentioned by the stakeholders and supplemented with views from the literature were used to propose a conceptual model of factors influencing academic success. The thesis concludes by discussing the implications of the constructs in the model for improved academic performance and as an area for further research.

A research report submitted to the Faculty of Science in partial fulfilment of the requirements for the degree of Master of Science Johannesburg, June 2013. / This study was motivated by the introduction of the topic of evolution in the Grade 12 Life Sciences curriculum in South African high schools in 2008. Many Life sciences teachers were concerned about their preparedness to teach evolution as this topic was new to them as well. They were worried about their ability to teach evolution as many felt that their content knowledge was inadequate to effectively teach evolution. The aim of this study was to investigate the nature and the extent of the pedagogical content knowledge of Life Sciences teachers who were going to teach evolution for the first time in South African high schools in 2008. This study used a five-category model of pedagogical content knowledge adapted from Shulman. Data were collected from two different samples from teachers who were attending workshops which were aimed at alleviating the teachers’ concerns and fears about evolution and to help them prepare to teach the topic of evolution. The first workshop was held at the end of the second school term in 2008, just a few weeks before many teachers were meant to start teaching evolution. The second workshop was held during the period when all teachers were supposed to have started teaching evolution, and that was in August 2008. The first group of teachers comprised 39 teachers who attended the evolution workshop during the SAASTE conference and the second group comprised 40 teachers attending the evolution workshop organised for NAPTOSA. The questionnaires were designed to address the five categories in the pedagogical content knowledge model used in this study. Seven activity-based questionnaires were used to gather data from two convenience samples consisting of two groups of teachers. The questionnaires investigated the nature and extent of the teachers’ knowledge of the evolution content they were supposed to teach; their knowledge of the teaching and learning difficulties regarding evolution; knowledge of the preconceptions and misconceptions associated with evolution; knowledge of appropriate methods and strategies to teach evolution and their curricular knowledge. Open-coding and frequency counting were used to analyse the data. The data revealed that the some teachers over-estimated their knowledge of the evolution subject matter, many harboured misconceptions about evolution. Further analysis of data revealed that many did not know of different approaches and strategies they could use when teaching evolution and that they did not know of the different additional resources they could use when teaching evolution. In general the teachers’ knowledge levels for teaching evolution, in all the five categories of pedagogical content knowledge was low, an indication that the teachers were ill-prepared for teaching evolution.

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