Schema modes in eating disorders: an interpretative phenomenological analysis
- Authors: Bowker, Chantal Ann
- Date: 2021-10-29
- Subjects: Eating disorders , Anorexia nervosa , Bulimia , Compulsive eating , Schema-focused cognitive therapy , Interpretative phenomenological analysis (IPA)
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/196072 , vital:45723 , DOI 10.21504/10962/196072
- Description: The DSM-5 prevalence rate of anorexia nervosa is 0.4%, bulimia nervosa is 1% to 1.5%, and binge eating disorder is 1.6% (American Psychiatric Association, 2013). Although treatment approaches for eating disorders have high drop-out rates and low rates of recovery, treatment modalities that address childhood factors contributing to the eating disorder, as well as the eating disorder behaviours, have better outcomes. Schema therapy is an integrative approach that has been used for the treatment of eating disorders for more than a decade. Central features in schema therapy include the identification of early maladaptive schemas arising from unmet needs and schema modes. Schema modes, composed of schemas and coping mechanisms, are active for an individual at a particular time in response to triggers in the environment (Brown et al., 2016). Identifying an individual’s modes is a crucial aspect that reflects the underlying structure of the individual’s creation of reality. A phenomenological understanding of the modes is essential for developing a case conceptualisation and treatment plan. Differences exist in the naming and description of modes in the current schema therapy literature, which suggests the need for a phenomenological investigation of these structures. This research study used a mostly qualitative approach, in the form of clinical interviews, substantiated by questionnaires, to examine schema modes. Case presentations using the schema therapy model are provided for five women with either anorexia nervosa, bulimia nervosa or binge eating disorder. Then, through a process of interpretative phenomenological analysis, specific modes are examined as to how they are experienced by the participants and influence their behaviour. The features of schema modes in these clinical cases are compared to the existing literature to extend the understanding of schema modes in eating disorders. The participants’ experiences revealed that they had schema modes in common, regardless of the eating disorder presentation, but that the features of the individual modes varied. Modes found in the current literature such as the Detached Self-Soother and Perfectionist Overcontroller coping mode, were found in all the participants. Four of the five participants had an Eating Disordered Overcontroller mode. Features consistent with the existing descriptions of the Perfectionist Overcontroller, Eating Disordered Overcontroller and Detached Self-Soother modes were noted, and new features were identified. The Perfectionist Overcontroller and Eating Disordered Overcontroller have been presented here as complex composite modes with sub-modes that work together in a coherent way in the service of the same project (Edwards, 2020b). Twenty-three features are identified in the parent modes. Blended parent modes, with multiple features active in a situation, were described. The blended parent modes expand on the existing literature on parent modes. The findings in this research support and extend the mode structure identified in the schema therapy theory, and highlight the idiosyncratic nature of the modes. , Thesis (PhD) -- Faculty of Humanities, Psychology, 2021
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- Date Issued: 2021-10-29
A novel Arf GTPase assay for antimalarial drug discovery
- Authors: Swart, Tarryn
- Date: 2021-04
- Subjects: To be added
- Language: English
- Type: thesis , text , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/178558 , vital:42950
- Description: Access restricted until April 2022. , Thesis (PhD) -- Faculty of Science, Biochemistry and Microbiology, 2021
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- Date Issued: 2021-04
Exploring pre-service teachers’ reflective practice in the context of video-based lesson analysis
- Authors: Chikiwa, Samukeliso
- Date: 2020-04-30
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Doctoral theses , text
- Identifier: http://hdl.handle.net/10962/355357 , vital:64492
- Description: This study explored the development of reflective practice in foundation phase pre-service teachers in the context of video-based lesson analysis at a university in South Africa. The study was conducted in the field of mathematics education, responding to the urgent need to equip pre-service South African teachers with the knowledge and skills for effective mathematics teaching. The research is foregrounded by the continuing poor performance of South African learners in mathematics at all levels of education in the country, which has been linked to the inadequate knowledge and skills of mathematics teachers. Pre-service teacher education is putting considerable effort into improving the preparation of mathematics teachers and developing their ability to reflect on their teaching practice is one of the strategies being employed for this purpose. Research has demonstrated the importance of reflective practice (RP) in both developing and extending teachers’ mathematical knowledge for teaching. This study therefore contributes to current research that supports the development of RP as a professional skill for promoting the acquisition of knowledge for teaching in pre-service teacher education. The study adopted a qualitative case study approach with two phases of data collection. In Phase 1 I collected and analysed three sets of 19 pre-service teachers’ written reflections to establish the nature of the reflections that they developed when analysing video-recorded mathematics lessons of experienced teachers’ practice. Phase 2 was conducted with four PSTs who reflected on video-recorded mathematics lessons of their own practice, and similarly sought to investigate the nature of the reflections they developed when reflecting on practice. The four PSTs wrote one set of reflections on their own lessons, went through three sessions of facilitator-guided reflections, then wrote another set of reflections to establish if the support provided in small group facilitator-guided sessions improved their reflections. Iterative content analysis was employed to analyse the PSTs’ written reflections, using an analytic tool that I developed for this purpose through merging Lee’s (2007) and Muir and Beswick’s (2007) levels of reflection frameworks. My model had four levels of reflection: description, explanation, suggestion and reflectivity. The names of each of the levels connect to the key indicator for that level. PSTs’ written reflections were coded and analysed according to these levels. The study found that PSTs’ initial reflections were mostly description of general classroom events with little reflection at the levels of explanation and suggestion, and an absence of reflectivity. Most reflections focused on general events in the lesson rather than mathematical events, even though the six lens framework they were given to guide their reflections prompted them to steer their attention towards mathematical events. The second and third sets of reflections, although mostly still at level 1, showed some shifts towards explanation and suggestion, although an increased focus on mathematical events though reflectivity was still largely absent. No PST reached the fourth level of reflectivity in Phase 1. However, in Phase 2, the PSTs’ reflections after the three small group facilitator-guided sessions included some evidence of reflectivity. The findings suggest the need for pre-service teacher educators to make a concerted effort to teach PSTs what reflection is and how to reflect on their practice. The findings also showed the need for small group facilitator-guided support in the development of PSTs’ reflective practice. , Thesis (PhD) -- Faculty of Education, Education, 2020
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- Date Issued: 2020-04-30