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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
201

Learner engagement in computer-supported collaborative learning environments : a mixed-methods study in postgraduate education

Piki, Andriani January 2012 (has links)
The thesis draws on a mixed-methods study which empirically and theoretically investigates the ways in which postgraduate students engage in collaborative learning activities facilitated by technology. The research is both significant and distinct in its approach towards understanding how learners engage in real-life computer-supported collaborative learning (CSCL) settings; what enables or hinders learner engagement; and how engagement shapes the learning outcomes. The ensuing findings indicate that learner engagement is embodied in human behaviour, emotions, and reflection and therefore it is described as a multi-dimensional concept. Learner engagement also appears to be a socially distributed phenomenon – rather than a stable student characteristic – influenced by various personal, group-level, and other situational factors, the most prominent of which are captured by the Hierarchical Model of Enablers and Barriers. The study also reveals that learner engagement presupposes purposeful interaction which is presented as an integrative theme capturing the impact of pedagogical design on engagement. Another observation is that particular combinations of student actions, perspectives, and characteristics tend to resurface and therefore may be considered as strong predictors of potential engagement (or disengagement). This finding led to the development of the WISE Taxonomy of Learner Engagement Archetypes which portrays the most universal engagement approaches that emerged within the studied context. Finally, findings seem to suggest that the way students envisage their learning outcomes is driven by the engagement approach each student adopts, and vice-versa. When combined, the proposed model, taxonomy, and conceptualisation of learner engagement collectively define a holistic analytical framework labelled Distributed Engagement Theory. The purpose of this mixed-methods study is to explore, understand, and subsequently explain learner engagement aiming at making an original contribution to existing CSCL literature as well as informing the design of pedagogical models for enhancing learner engagement in CSCL environments within postgraduate education.
202

Challenges to meritocracy? : a study of the social mechanisms in student selection and attainment at the University of Oxford

Zimdars, Anna January 2007 (has links)
Educational transitions in the UK are related to social background characteristics such as social class and, to a lesser extent, ethnicity and gender. This thesis presents a case study of admission to the University of Oxford to understand why, conditional on application, admissions patterns into selective higher eduction in Britain show an advantage for already privileged strata of society. Specifically, net of attainment, the professional middle class, white, male and state school applicants fare particularly well in securing offers for undergraduate study at Oxford. With the exception of the state school effect, the admissions privilege advantages already privileged strata of society. In the first empirical section, the analysis of purposefully generated survey data on 1,929 applicants for admission to the University of Oxford finds that quantifiable measures of merit fail to fully explain differential admissions patterns. The logistic regression models also uncover that while applicants from the private sector initially have similar gross chances of gaining an offer to their state school educated peers, they actually face a penalty in the selection process when taking into account their higher levels of prior academic attainment. Furthermore, the analysis shows that while measures of cultural capital, motivation, aspiration and learning style are meaningfully related to selection decisions, they do not explain the lower transition rates for ethnic minority applicants, those from non-professional class backgrounds, female applicants and private school applicants. The second step in the empirical investigations then aims to understand the generative mechanisms behind these findings from the perspective of the decision makers in the selection process. This section draws on interviews with 25 admissions tutors and the observation of eight admissions meetings. The analysis here finds that selectors view the admissions exercise as involving risks and uncertainties. Also, many participating tutors routinely considered schooling in their selection decisions and discounted the performance of applicants who had come from very high achieving schools but who were not top achievers within this peer group. The mechanism of homo-social reproduction in decisions involving uncertainty is then put forward as a possible explanation for the unequal transition patterns. Finally, the third empirical analysis section investigates links between degree performance in final university examinations and admissions relevant factors. This section includes the degree performance of Oxford students as well as those who subsequently embarked on their degree course at universities other than Oxford. The most striking finding is that among the Oxford graduates, female and private school students are less likely to achieve first class degrees than their male and state school educated peers. One interpretation of this finding is that the discounting that selectors apply in the admissions process for these applicants is not only justified but may not even go far enough. But it is also possible, in particular with regard to the female effect, that the Oxford study environment or the examination system, or both are more conducive to male achievements. This thesis contributes to sociological theory by showing that existing models of educational transition have paid insufficient attention to the role of gatekeepers and their individual preferences in generating aggregate selection patterns. Incorporating selectors as actors in transition models increases our understanding of unequal access to educational institutions and the challenges faced in striving towards equal opportunities in an education based meritocracy. The findings presented here have implications for other fields of sociological inquiry that need to account for the role of individual decision makers such as labour market research. The work presented here has implications for policy making regarding selection processes within the University of Oxford and British higher education more generally. It could also aid university systems such as Germany, that are moving towards selective admission, to think about the challenges of designing truly equitable selection processes.
203

Not just ticking the box : an investigation into safeguarding adults training transfer in Cornwall, UK

Pike, Lindsey Anne January 2012 (has links)
Safeguarding adults is a priority in adult social care, and training is one of the main ways in which policy and guidance around it is implemented. Training transfer refers to the use of new learning on the job, and while the transfer literature is well developed, it does not extend to safeguarding adults training. This research aimed to identify, develop and refine a programme theory of safeguarding adults training transfer by identifying factors that facilitate or inhibit the use of safeguarding adults training in practice, and the impact that the training has. A cross sectional mixed methods realist synthesis approach was used to evaluate two safeguarding adults training programmes provided in Cornwall, UK between 2009 and 2011. Realist synthesis aims to uncover what works, for whom, in which circumstances and how, and develops policy makers’ programme theories of interventions using evidence. A systematic review of training transfer generally, and then of health and social care transfer specifically led to a revision of the policy makers’ programme theory of training. Empirical research in the form of a factorial survey and narrative analysis of qualitative interviews was then undertaken, to further revise the programme theory to be specific to safeguarding adults training. Findings emphasise the importance of considering the effect of the training culture and transfer climate on safeguarding adults training effectiveness. Factors such as opportunity to use learning and supervisor support are important to transfer and the conflict between adult learning principles and mandatory training was explored. Safeguarding adults-specific supports were also highlighted, emphasising the importance of supporting practice using mechanisms other than training. Recommendations are provided regarding how the safeguarding related transfer climate can be improved. Limitations of the study include a high likelihood of sampling bias. The limitations of individual methods and problem of generalising findings obtained from a case study of Cornwall were reduced using the realist synthesis approach.
204

The effect of psychosocial information resources on the psychological impact of genetic testing for patients

Lewis, Celine January 2011 (has links)
The effect of psychosocial information resources on the psychological impact of genetic testing for patients Background: The genetic testing process has been shown to have a profound psychosocial impact on patients and families, yet research suggests that there is a lack of practical and helpful psychosocial information written to support decision-making. Ideally, this should be available for use both before and after genetic testing and should be easily accessed through genetic clinics. The development of pre-written leaflets or on-line resources which draw on the experiences and advice of families who have been through similar experiences, and are readily available through genetic clinics, might be one way of helping families make necessary adjustments. Aim: The aim of this study was to develop information resources for a) people undergoing carrier testing, and b) parents of children with undiagnosed conditions, and to pilot the use of these resources with service users. Methods: A systematic literature review was conducted to identify key themes to inform the content of the resources. To build on these findings, in-depth interviews were conducted with 11 people who had undergone carrier testing and 14 parents of children without a diagnosis. Interview data were analysed using the grounded theory method. A grey literature search of existing patient information was also conducted. These three phases informed the content of information resources. The development process also included input from genetic specialists, patient group representatives and interviewees. Finally, a pilot study was conducted through three genetic centres to assess the feasibility of a study testing the use of the resources. Findings: The participants in this study were striving for empowerment: carriers sought reproductive empowerment; parents developed empowerment strategies in order to advocate for their child. Moreover, a theory named ‘reconstructing the meaning of being a parent’ was constructed to describe the experience of parenting a child for whom no clear care pathway existed. The importance of providing timely information was identified as being a key factor in supporting parents during their search for a diagnosis. A new model was built to summarise the overarching experience of participants in this study. Conclusions: Empowerment was identified as a dynamic and multi-faceted construct. Health professionals and support groups can help facilitate the empowerment process through the provision of timely psychosocial information. This is particularly important in an age when patients are expected to take greater control than ever before over decisions affecting their healthcare.
205

The international competitiveness of Malta as a tourist destination

Azzopardi, Ernest January 2011 (has links)
Many small islands depend on sustainable tourism to attain long term economic prosperity and well-being for their citizens. As they become more dependent on tourism for their growth, they are more concerned with improving their competitiveness to adapt to a highly charged competitive environment and to the dynamic market conditions. The quintessential problem is how to achieve, maintain, and enhance competitiveness. There is limited research on tourism destination competitiveness (TDC), and much less on small island destinations. This study concentrates on TDC with a special focus on Malta as a small Mediterranean island in an attempt to develop a comprehensive TDC framework that is useful to small island destinations, and advances models and measures to assess competitiveness based on importance-performance analysis techniques (IPA). To achieve its research objectives, this study adopts a methodological position reflecting pragmatist assumptions and uses a sequential, exploratory, Mixed Methods design strategy. In the qualitative first phase of the design, thirty-five in-depth interviews are conducted with key ‘experts’ in tourism. It emerges from the participants’ description that sixty tourism-specific and business-related determinants provide a broad framework for assessing TDC. In the second phase, survey research is applied in order to develop quantitative measures to reveal the relative importance of the competitiveness factors, to assess the performance of the destination on these factors, and to identify priority areas that require immediate attention for improvement. Statistical measures and procedures are modified, introduced, and tested to establish a valid model for measuring TDC. Results show that the diagonal approach and the adjusted weighted partial ranking method for measuring importance and performance are the best combination that satisfies validity criteria. When applying these techniques to assess Malta’s competitiveness relative to a competing set of Mediterranean destinations, twelve tourism attributes and fourteen business-related factors are identified as priority areas for improvement, with the competitiveness deficiency gaps in business factors being notably higher than those in tourism-specific areas. This study has several implications for the development of TDC theory, methods, and application to small islands. It provides tourism researchers, policymakers, and practitioners with a theoretically robust framework that can assist them in the formulation of policies, the management of the destination, and the implementation of strategies to optimise resource allocation in order to enhance a destination’s competitive position. Given that there are few studies that focus on the development and measurement of TDC models for small islands, this study makes a valid contribution to knowledge. The methodological approaches adopted in this inquiry have substantive application in IPA studies both within and beyond tourism studies. The study’s outcomes are also transferable to small island destinations operating in similar environments.
206

Digitala verktyg i akademiska studier : En undersökning av användning av digitala verktyg ur ett studentperspektiv / Digital tools in academic studies : A study on the use of digital tools from a student perspective

Enedahl, Regina Mary January 2016 (has links)
Digitala teknologier har ändrat förutsättningarna inom utbildningssektorn och bidragit till en dramatisk ökning av studenternas tillgång till och användning av digitala verktyg för sina studier. Begreppet digital kompetens har beskrivits som en av flera nyckelkompetenser som behövs för att kunna delta i samhället och ingår numera som mål i examensordningen på akademisk nivå i utbildningen för exempelvis förskollärare. Men vad vet vi om studenters digitala kompetens och tillämpning av digitala verktyg som stöd för sitt eget lärande under sina studier vid högre utbildning? Vilka erfarenheter har de med sig och hur förhåller de sig till dessa digitala verktyg? Studiens syfte har varit att undersöka användning av och förhållningssätt till digitala verktyg i akademiska studier som stöd för lärande på en förskollärarutbildning. Studien har fokuserat kring frågeställningarna:Hur används digitala verktyg som stöd för lärande av studenter på en förskollärarutbildning? Och Hur förhåller sig studenter på en förskollärarutbildning till de möjligheter digitala verktyg tillhandahåller som stöd för lärande? Studien har kombinerande forskning som metodansats, där kvantitativa och kvalitativa forskningsstrategier kopplas samman. Resultatet bygger på en enkätundersökning och fokusgruppsintervjuer och pekar på att studenterna använder digitala verktyg dagligen i utbildningssyfte. Studenterna använder framför allt digitala verktyg för att läsa och skriva texter, göra presentationer, ta del av och söka informationen samt kommunicera. De vanligaste digitala verktyg som studenterna använder är mobila enheter, så som mobil, smartphone och bärbar dator. De flesta studenter använder webb 2.0-tjänster, så som Skype och sociala medier, för samarbete samt diskussionsforum. Vidare visar resultatet att studenterna innehar en viss digital litteracitet och anser att digitala verktyg kan vara stödjande i vissa avseenden men också störande i andra avseenden. Resultatet påvisar att studenterna till viss del känner sig digitalt kompetenta, men den kompetensen kan variera från individ till individ oavsett ålder och är enligt studenterna kopplad till individens grad av intresse. Studien bidrar till kunskap om hur studenter förhåller sig till de möjligheter digitala verktyg tillhandahåller som stöd för lärande samt hur de använder digitala verktyg i en akademisk diskurs. Genom att sätta fokus på ett studentperspektiv kan uppsatsen bidra med ett värdefullt kunskapstillskott om studenternas förhållningssätt till och användande av digitala verktyg och således ge en grund för bättre utformning av undervisning i strävan att nå upp till utbildningens mål.
207

Toward a rigorous derivation of a stable and consistent smoothed particle hydrodynamics method

Munro, David 11 1900 (has links)
The aim of this thesis is to provide an investigation toward a rigorous derivation of a stable and consistent numerical method based on the established Smoothed Particle Hydrodynamics method. The method should be suitable for modelling the large deformation transient response of fluids and solids, the interests of the Crashworthiness, Impact and Structural Mechanics group (CISM) at Cranfield University. A literature review of the current state of the art of the SPH method finds that the conventional SPH equations are not derived in a rigorous way, often the equations are manipulated into a mathematically equivalent form in order to preserve conservation of linear momentum, which often leads to different results; the reasons for this are unknown and it is not fully understood how each particular form of the discrete equations effects the solution in terms of stability, accuracy and convergence. This leads to specific objectives being defined which underpin the overall aim of the thesis. The first objective is to develop an understanding of the SPH method and the implementation used at Cranfield University, this is done through a capability study which demonstrates the coupled SPH-FE method and a number of relevant improvements to the MCM code including the addition of a turbulence model and the modification of the SPH contact algorithm to model lateral forces between materials. This is demonstrated through the implementation of a friction model, which suggests that the contact algorithm is suitable for resolving lateral forces based on the relative velocity between materials, with the potential for coupling with a structural FE model ... [cont.].
208

Expanding Food Agency: Exploring the Theory and Its Scale in Philadelphia, PA

Morgan, Caitlin Bradley 01 January 2016 (has links)
Our contemporary American food system has created complex environments for decisions and actions around food, and those decisions have implications for culture, health, natural resources, social relations, and the economy. And yet, as scholars, we do not understand the particulars of how people actually cook for themselves and their families. This study explores how race and socioeconomic class interact with individual experience of "food agency," or personal capacity to plan and prepare meals within one's food environment. It is one stage in a multiphase project developing a comprehensive theory of food agency, applicable in any context; a scale for measuring that agency; and a cooking pedagogy for increasing it. This research was based on an explanatory sequential mixed methods design: a qualitative follow-up to quantitative research (see Creswell & Plano Clark, 2011). It is an in-depth qualitative investigation with low-income participants of color, a population that had previously not been included in the development of food agency theory. The study's population was a mix of Drexel University students and community residents of Mantua, in Philadelphia, PA, and was recruited from Drexel's Healthy Cooking Techniques summer course. Data collection included semi-structured interviews and survey administration, and also utilized food agency scale survey responses. Analysis and results are divided into two papers, one narrative, and one a comparison between quantitative components of the food agency scale and corresponding qualitative data. Narrative analysis reinforces the notion that food agency is incredibly complex and self-referential. People with high self-efficacy around food may feel like they have a high level of agency, even if they can identify ways that societal structures impede them. Mixed-methods analysis reveals aspects of food agency that are not reflected by the scale: specifically, strategies for procuring food; environmental and financial impediments to that procurement; and aspiration for greater self-sufficiency and healthfulness in preparing food. Participants are intentional and skillful in resisting economic and environmental obstacles to feeding themselves. They want to be supported in building skills for that daily endeavor. The food agency scale does not gauge many of the strategies with which they resist obstacles, and therefore might be better cast as a cooking action scale, rather than a measure of comprehensive food agency.
209

Parental Perceptions and Experiences of Physical and Emotional Violence between Siblings: A Mixed-Methods, Comparative Case Study

Perkins, Nathan 02 May 2014 (has links)
Sibling violence is a common occurrence for many children yet this form of family violence has received minimal attention in research compared to other forms of child maltreatment. With parents as an integral component in the lives of many children, parental perceptions and experiences of violence between siblings are important to understand. Furthermore, with the increased variation in family structures within society, inclusion of multiple types of families in research is necessary to encompass a broad understanding of sibling violence. This case study included seven parents from four different family structures to examine their perceptions and experiences of physical and emotional violence between siblings. Three phases of data collection including both quantitative and qualitative data gathered information about participants’ experiences with siblings in childhood, witnessed behaviors between children, behaviors associated with sibling violence and sibling rivalry, and labels used to refer to violence between siblings. Participants were also presented with several case scenarios depicting various sibling interactions in which they processed the degree to which they found the behaviors violent or non-violent. Findings indicate that family structure is less important than past and present environmental and contextual factors in understanding participant differentiation between problematic and non-problematic behaviors between siblings. Data from all three phases helped in the construction of a parental decision-making model of sibling interaction that included consideration of past experiences, children factors, the context of interaction, and family rules when classifying behaviors. Implications of the findings for social work direct practice, policy aimed at addressing violence between siblings, advocacy through parental education, social work education, and future directions for research in the area of sibling violence are presented.
210

A STUDY OF THE EFFECTIVENESS OF A TRUANCY REDUCTION PROGRAM FOR MIDDLE AND HIGH SCHOOL STUDENTS

Parrish, Jan R 01 January 2015 (has links)
This study utilized a mixed methods design. The study was carried out in two phases. In the first phase of the study, a secondary data analysis of data were collected from a sample (n = 390) of middle and high school students who participated in a truancy pilot program launched during the 2012-2013 school year with follow-up services provided through June 2014. The sample was divided into two groups (treatment and control). The treatment group was diverted from court referral and participated in an intervention consisting of in-home counseling and case management services. The control group was referred to court and went through the traditional court process and received no treatment services. The effectiveness of the intervention was measured through the collection of pre and post intervention data consisting of the number of unexcused absences, disciplinary referrals, beginning and final grades in English, math, science, and social studies. As a final variable, retention and promotion rates were examined. The effectiveness of the truancy reduction intervention was measured by the amount of reduction in these variables following the implementation of the treatment. Data in the first phase of the study were collected by the Family Assessment and Planning Team (FAPT) in partnership with the school district and other agencies. Further analysis was performed in Phase II of the study utilizing a single school case study design. Qualitative case study is an approach to research that allows the researcher to explore a phenomenon within its context using a variety of data sources. For this phase of the study, data were collected through a survey and a focus group using a sample of students from the treatment and control group of the truancy pilot program. The focus group was designed to gain insight from the voices of the students regarding their perceptions of the factors that influence truancy and the effectiveness of truancy intervention. The statistical procedures used to examine the quantitative data included Analysis of Covariance (ANCOVA) and Chi Square. Analysis of data collected in Phase I of the study revealed that there was no difference in the effect of treatment for students who were diverted from court to treatment services and those who went through the traditional court process and received no treatment. This finding was supported by results of the analysis of data from the survey and focus group. Results indicated that students did not perceive either invention as being more effective than the other in reducing their truancy. Further, results of the survey and focus group indicated that school factors, not family factors, had the greatest impact on the students’ nonattendance. School factors such as safety, teacher and student relationships, and teacher expectations were identified as primary themes. The findings suggest that the truancy pilot intervention’s focus on family factors as a means of reducing chronic truancy may have been focused in the wrong direction. .

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