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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.
101

'n Analise van die faktore wat die rekenaarselfdoeltreffendheid van Grondslagfase onderwysers beïnvloed / Elsabé Wessels

Wessels, Elsabé January 2006 (has links)
In many countries the introduction of Information and Communication Technology (ICT), especially computers, into schools has been praised as the necessary (although not without problems) course of action for the qualitative improvement of teaching and learning methodology. However, one of the greatest barriers inhibiting the successful adoption of a range of strategies to improve learning in a new technologically enriched framework is resistance from teachers who may feel threatened and disempowered by the change brought about by the introduction of technology into their classrooms. The purpose of the study was to investigate the factors that influence the self-efficacy of teachers in the foundation phase: Which factors influence the computer self-efficacy of foundation phase teachers? What is the relation between the identified factors and the computer self-efficacy of teachers? 0 What are the implications of the results for future training of foundation phase teachers? All teachers (N=34) in the foundation phase in the central region of Lichtenburg, a town in the Northwest province of South Africa, participated in the study. They completed a questionnaire, which consisted of two sections: The first section determined the teachers' computer self-efficacy. a The second section identified the possible factors that may influence the computer self efficacy of foundation phase teachers. To ensure that all possible data, with regard to factors that might affect teachers' computer self efficacy, were collected, the researcher also made use of interviews and observations. The data was analysed by using frequency distributions, Pearson product-moment correlations as well as Analysis of Variance, (ANOVA). The results regarding age and computer efficacy was analysed using ANOVA. The results showed a slight difference in the computer efficacy of the teachers from different age groups. Therefore, it may be possible to enhance the computer efficacy of teachers from any age group. The results indicated a relation between the computer self-efficacy of foundation phase teachers and some of the identified factors, namely formal training, computer experience and school support. The relation was statistically as well as practically significant. Age and access to a computer did not seem to have a statistically significant effect on computer self-efficacy. The results of this study have implications for teacher training. Computer training will be to the benefit of Foundation phase teachers. Explicit guidance on the choice and use of software and the integration thereof with teaching methods is essential, because computer technology is an integrated part of the 21st century generation of learners. / Thesis (M.Ed.)--North-West University, Potchefstroom Campus, 2006.
102

Mind that Gap!: Exploring a family-based vegetable cooking programme for children and their parents

Trill, David 02 May 2014 (has links)
Increasing fruit and vegetable intake is important to obesity prevention but children’s vegetable intake remains low. This study aimed to enhance parent vegetable serving behaviour and child vegetable intake through an 8-week theory-based family cooking program. Sixty-five families with children aged 9-13 (11.1 ±1.4) were randomized into a home activity program or home activity plus cooking workshop program. There was no significant increase in parent vegetable serving habits or children’s intake. Both interventions enhanced feeding practices (F (1, 63) = 42.09, p=.000, ɳ2=0.40) and reduced perceived barriers (F (1, 63) = 13.01, p=.001, ɳ2=.017). Children in the cooking workshop condition liked vegetables more (F (1, 63) = 3.87, p=.050, ɳ2=0.06) and had greater diet-disease awareness (F (1, 63) = 3.97, p=.050, ɳ2=0.06) at follow-up (statistic). Family engagement in cooking was successful in enhancing some psychosocial measures for both children and parents, particularly for those receiving cooking workshops. A low sample size and sampling bias may have masked other findings. / Graduate / 0570 / 0573 / dtrill@uvic.ca
103

MobileMums: a physical activity intervention delivered via SMS for disadvantaged postnatal women

Brianna S Fjeldsoe Unknown Date (has links)
Abstract The role of regular physical activity for preventing ill health and chronic disease is well established. Despite the demonstrated role of physical activity for the prevention of ill health, population participation levels among adults remain at stable but unfavourably low levels. Evidence suggests that postnatal women (<12-months postpartum) living in disadvantaged communities are at particular risk of low physical activity participation, even though there are additional physical and mental health benefits of physical activity in the postpartum period. There is a need to develop effective physical activity interventions for postnatal women living in disadvantaged communities. Traditional physical activity interventions are often designed and implemented in ways that exclude disadvantaged groups. Unlike other methods of communication typically used to disseminate mass-reach interventions (e.g., internet, e-mail), mobile telephone short messaging service (SMS) is used equally by disadvantaged and advantaged groups. Few SMS-delivered health behaviour interventions have targeted preventive health behaviours, such as physical activity. The primary aim of this research was to evaluate the efficacy of an individually-tailored physical activity intervention delivered via SMS (“MobileMums”) for postnatal women living in a disadvantaged community. A secondary aim of this research was to explore the role of theory-derived mediators of physical activity behaviour change that were targeted in the intervention. A physical activity intervention was developed based on findings from formative focus groups conducted with postnatal women (n=48) and a pilot study of intervention procedures and content (n=12). This formative research highlighted the need for flexible delivery of a physical activity intervention for postnatal women and identified mobile telephone SMS as a highly used form of communication. Women indicated a willingness to receive health-related messages via their mobile telephones and reported a physical activity preference for walking. The 12-week intervention was delivered primarily via personally tailored SMS and aimed to increase health-enhancing physical activity (HEPA) and more specifically Walking for Exercise. The SMS targeted constructs of the Social Cognitive Theory (SCT) (self efficacy, outcome expectancy, goal setting skills, social support and perceived environmental opportunity for exercise). Overall, the intervention employed practical strategies to help participants develop skills in physical activity goal setting and social support negotiations, and promoted local opportunities for physical activity. The intervention was evaluated in a Randomised Controlled Trial (RCT) involving 88 postnatal women. Data were collected at baseline, 6-weeks and 13-weeks. At each data collection point, HEPA was assessed using ActiGraph accelerometers and self-report measures. Walking for Exercise was assessed in the self-report measure. Validated self-report measures of the targeted SCT constructs were also administered at each data collection point. Following the RCT, intervention group participants were invited to participate in a one-on-one qualitative interview to explore their perceptions of the intervention. The intention-to-treat analysis of HEPA outcomes revealed significant group x time interaction effects for change in HEPA frequency (days per week) using both MTI-recorded (F(2,44)=9.17, p<0.001) and self-reported outcomes (F(2,85)=7.15, p=0.001). Intervention group participants increased MTI-recorded HEPA frequency (mean change 1.46 days/wk, SD± 2.16) and self-reported HEPA frequency (mean change 1.67 days/wk, SD± 1.71) from baseline to 13-weeks. There was no significant effect on HEPA duration (minutes per week) as a result of the intervention for either MTI-recorded or self-reported outcomes. Self-reported Walking for Exercise frequency had a significant between-group effect (F(1,86)=5.02, p=0.03) and within-group effect (F(2,85)=8.60, p<0.001) but there was no significant group x time interaction. There were significantly more intervention group participants than control group participants meeting the HEPA guidelines at 6-weeks (86% vs. 37%, χ2=10.25, p=0.001) and at 13-weeks (54% vs. 19%, χ2=5.18, p=0.04). There were significant group x time interaction effects for change in self efficacy (F(2,85)=3.69, p=0.03) and goal setting skills (F(2,85)=4.28, p=0.01) from baseline to 13-weeks. Based on the Baron and Kenny criteria for mediation, changes in self efficacy and goal setting skills mediated the significant intervention effect on change in HEPA frequency over the first 6-weeks of the intervention. None of the SCT constructs mediated the significant intervention effect on change in HEPA frequency during the second 6-weeks of the intervention. There was a generally positive response to the intervention from participants. Results from qualitative interviews showed that intervention group participants believed the intervention helped them to initiate physical activity, and that it was motivating and ‘mother-centred’. At 13-weeks, more intervention group participants (51%) rated the intervention program as ‘extremely useful’ or ‘useful’ than at 6-weeks (44%). Overall, the intervention developed as part of this research resulted in increases in HEPA among postnatal women, which were mediated in the short-term by changes in targeted SCT constructs. This study is an innovative extension of previous research investigating strategies to promote physical activity among postnatal women. The findings provide evidence to support further inter-disciplinary collaborations between researchers in physical activity (and other areas of health behaviour change) and information technology. This research contributes foundation knowledge to the emerging research area of SMS-delivered health behaviour change interventions and the potential for systematic population-wide delivery via an existing low-cost technology.
104

Message Sources, Targeted Messages, and Physical Activity: A Social Cognitive Theory View

January 2012 (has links)
abstract: This study utilized targeted messages and expert and referent sources in an effort to promote physical activity behavior in college students. College students aged 18-25, excluding collegiate athletes, were randomized into three conditions using their current physical activity level. Two of the conditions received targeted messages highlighting three primary components of social cognitive theory - self-efficacy, outcome expectations, and goals - while the third condition received no messages. In addition, the experimental conditions received the messages from either an expert (i.e., a personal trainer) or a referent (i.e., a close friend). In this way, this experiment analyzed whether receiving social cognitive theory messages increased physical activity indicators compared to the control condition, as well as if the message source caused differences in the physical activity indicators. Moreover, participants completed Time 1 and Time 2 measures to determine if receiving messages or not caused changes over a one week time period. Seven physical activity indicators were assessed: self-efficacy, positive outcome expectations, negative outcome expectations, attitudes, response-efficacy, intentions, and physical activity behavior. Results revealed that both the personal trainer and close friend conditions had significantly higher scores than the control condition for intentions at Time 1 and Time 2, as well as physical activity behavior at Time 2. Moreover, the personal trainer condition had significantly higher positive outcome expectations compared to both the friend and control conditions. No other significant differences were found across conditions for Time 1 attitudes, response-efficacy, negative outcome expectations, self-efficacy, and Time 2 attitudes, and self-efficacy. Overall, targeted messages were effective in increasing physical activity intentions and behavior regardless of the message source. / Dissertation/Thesis / Ph.D. Communication 2012
105

Use of an Interactive Web-based Platform, Founded on Constructs from the Social Cognitive Theory, to Benefit Eating Competence

Moyer, Matthew T. 01 May 2014 (has links)
Since Web-based interventions have a significantly high rate of attrition ranging from 99.5% to 77.5%, the researcher employed an instrumental case study approach to understand compliance in a Web-portal. The specific issue for this study was attrition rates and how SCT constructs affected eating competence. Qualitative data provided ground zero insight to a complex issue that was further understood. To better understand the phenomenon, participants that registered for the 30-day study and the software developer were interviewed. All interviews (n=6) were transcribed and data from the transcriptions were transformed from dialogues, into categories, then themes, and finally into concepts. Five guidelines to keep attrition rates low was the outcome of the data analysis. Having a nation interested in the Internet and at the same time faced with an obesity epidemic seemed to be a good fit for researching a method to promote eating competence with interactive technology. Eating competence intertwines four components: (1) attitudes about eating and the enjoyment of food (2) accepting new food to add variety to your diet (3) being able to eat the right amount of food and (4) being able to manage food through proper planning, storing, preparing, and offering. With the above information extracted from the literature, it was determined, a serious enough problem existed to justify spending time, money and other resources to develop and implement an intervention. The theoretical framework supporting the development of the web portal is the social cognitive theory (SCT). In health promotion, the purpose of the SCT is to help people stay healthy through good self-management of health habits. This dissertation focused on four constructs: self-efficacy, behavioral capabilities, observational learning, and reinforcement to better understand how eating competence skills were enhanced and attrition rates lowered.
106

Social cognitive theory based physical activity intervention targeting non-working time physical activity of workers with intellectual disabilities

Chan, Suet Ying 21 March 2014 (has links)
The purpose of the study was to evaluate the effects of a Social Cognitive Theory (SCT) based physical activity intervention designed to evaluate the effectiveness of the twelve-week intervention with regard to psychosocial behaviour using SCT and physical activity behaviour among adults with intellectual disability in non-working time. Design: The study involved pre-post randomized control trial and employed a MANCOVA analysis for this study. Between-Subjects Design was used to assess the effect of independent variable (twelve-week intervention programme) on two groups (intervention group and control group). Follow-up (separate ANVOAs) were calculated on the four dependent variables (self-efficacy, outcome expectancy, barrier to exercise, and moderate physical activity). Participants: Eighty participants from St. James settlements aged over 18 years participated in the present study. After data screening, 59 (30 males, 29 females; n for intervention=29, n for control=30) cases with completed data were analyzed. The final data set contained participants with age ranged from 21 to 67 years (M=35.83, SD=10.28) and BMI ranged from 13 to 64 (M=27, SD=7.33). Intervention group received a SCT-based intervention programme for twelve one-hour lectures. Outcome measures:The Primary outcomes included Self-efficacy, Outcome expectation and Barrier to exercise Questionnaire (SOBQ) on psychosocial behaviour (self-efficacy, outcome expectancy and perceived barrier) and Physical Activity Recall (PAR) on physical activity behaviour (moderate physical activity) among adults with intellectual disabilities. Secondary outcome include objective check list to evaluate the designed treatment being delivered to participants adequately. Measures were taken at baseline and posttest and additionally, intervention group were recruited for follow-up at 4-month. Results: After controlling the pretest scores, the MANCOVA results showed a statistically significant difference between two groups (intervention group and control group) F(4,48)=32.8, P<0.001; Wilk’s Lambda=0.27, partial eta squared =0.73. Result of follow-up measure on MANCOVA, showed that 12-wk intervention between-subjects are significant for all 4 dependents variables: self-efficacy: F(1,116)=47.12, p<0.0125, ηρ²=0.48; outcome expectation: F(1,134)=22.27, p<0.0125, ηρ²=0.30; barrier to exercise: F(1,100)=10.50, p<0.0125, ηρ²=0.17; moderate physical activity F(1,114)=96.79, p<0.0125, ηρ²=0.65 with a Bonferroni adjusted alpha level of 0.0125. The MANOVA results showed that the outcome of the 12-week intervention programme significantly influence time (pretest and posttest) of self-efficacy, outcome expectation, barrier to exercise, moderate physical activity. All scores are significantly higher for posttest in self-efficacy (p<0.01), outcome expectation (p<0.01), moderate physical activity (p<0.01), and lower in barrier to exercise (p<0.01). Lastly, the four months follow-up test showed that the intervention group had significantly lower mean scores compared with posttest in self-efficacy, outcome expectancy, and barrier to exercise. There was no significant difference in moderate physical activity between follow-up and posttest in the intervention group. Conclusions: The twelve-week SCT-based educational treatment shows significant effects in posttest and also intervention group on the targeted constructs: self-efficacy, outcome expectation, and barrier to exercise as well as increasing the moderate physical activity among working adults with intellectual disabilities.
107

The Validation Study of the Persistent Academic Possible Selves Scale for Adolescents

January 2013 (has links)
abstract: Possible selves researchers have uncovered many issues associated with the current possible selves measures. For instance, one of the most famous possible selves measures, Oyserman (2004)'s open-ended possible selves, has proven to be difficult to score reliably and also involves laborious scoring procedures. Therefore, this study was initiated to develop a close-ended measure, called the Persistent Academic Possible Selves Scale for Adolescents (PAPSS), that meets these challenges. The PAPSS integrates possible selves theories (personal and social identities) and educational psychology (self-regulation in social cognitive theory). Four hundred and ninety five junior high and high school students participated in the validation study of the PAPSS. I conducted confirmatory factor analyses (CFA) to compare fit for a baseline model to the hypothesized models using Mplus version 7 (Muthén & Muthén, 2012). A weighted least square means and a variance adjusted (WLSMV) estimation method was used for handling multivariate nonnormality of ordered categorical data. The final PAPSS has validity evidence based on the internal structure. The factor structure is composed of three goal-driven factors, one self-regulated factor that focuses on peers, and four self-regulated factors that emphasize the self. Oyserman (2004)'s open-ended questionnaire was used for exploring the evidence of convergent validity. Many issues regarding Oyserman (2003)'s instructions were found during the coding process of academic plausibility. It was complicated to detect hidden academic possible selves and strategies from non-academic possible selves and strategies. Also, interpersonal related strategies were over weighted in the scoring process compared to interpersonal related academic possible selves. The study results uncovered that all of the academic goal-related factors in the PAPSS are significantly related to academic plausibility in a positive direction. However, self-regulated factors in the PAPSS are not. The correlation results between the self-regulated factors and academic plausibility do not provide the evidence of convergent validity. Theoretical and methodological explanations for the test results are discussed. / Dissertation/Thesis / Ph.D. Educational Psychology 2013
108

From self to social cognition : a new paradigm to study differentiations within the Theory of Mind mechanism and their relation to executive functioning

Bradford, Elisabeth E. F. January 2016 (has links)
Theory of Mind (ToM) refers to the ability to attribute mental states to oneself and other people. In this thesis, I present a new paradigm, the Self/Other Differentiation task, which was designed to assess ToM abilities – specifically, the ability to attribute belief states to the ‘Self' and ‘Other' – in typically developed, healthy adults. By focussing on fully developed ToM abilities, we aimed to increase understanding of how the ToM mechanism is structured and functions in everyday life, and how individual ToM components may differentially relate to executive functioning (EF) abilities. The Self/Other Differentiation task is a computerized false-belief task utilizing a matched- design to allow direct comparison of self-oriented versus other-oriented belief- attribution processes. Using behavioural (response times/error rates) and electrophysiological (EEG) methods, the work presented in this thesis provides evidence of a clear and distinct differentiation in the processing of ‘Self' versus ‘Other' perspectives in healthy ToM. We established a key role of perspective-shifting in ToM, which we hypothesize plays a crucial role in day-to-day communications; shifting from the Self-to-Other perspective was significantly harder (longer and more error prone) than shifting from the Other-to-Self perspective, suggesting that the ‘Self' forms the stem of understanding the ‘Other'. EEG analysis revealed these effects were present across fronto-lateral and occipital-lateral areas of the brain, particularly across the right hemisphere in parietal regions. We provide evidence of these features as universal, core components of the ToM mechanism, with data collected from both Chinese and Western cultures illustrating similar patterns of results. Results regarding the relationship between ToM and EF were mixed, with one study finding that affective EF positively correlates with ToM task performance, whilst non-affective EF does not, and a further two studies finding no such differential relationship. The Self/Other Differentiation task provides the opportunity to establish the features of ‘typical' ToM processes in healthy adults, to further our understanding of how the mature ToM mechanism functions.
109

Vnímaná vlastní účinnost (self-efficacy) a pracovní výkonnost / Self-Efficacy and Work Efficiency

Markvart, Štěpán January 2007 (has links)
The tagets of this thesis were to test with a chosen organization's staff how much self-efficacy depending of particular tasks affected the quality of fulfilling those tasks, to recommend suitable methods of increasing self-efficacy and to suggest a method of task formulation corresponding to social cognitive theory of man in organization. The research was done at a particular section of fiscal administration. The requisite information was obtained by questionnaire method, the received dates were compiled by the suitable statistical methods. The consequent results allowed to say there was no positive relation betwen self-efficacy during fulfilling particular tasks and the efficiency of the particular section's offices. One of the most important results was that self-efficacy itself did not affect the efficiency of the particular offices. The differences in the efficiency resulted from the managers'work. The thesis includes recommendations resulted from its targets.
110

A Q Factor Analysis of College Undergraduate Students' Study Behaviors

Yang, Yang 30 June 2011 (has links)
The purpose of this study was to better understand the study behaviors and habits of university undergraduate students. It was designed to determine whether undergraduate students could be grouped based on their self-reported study behaviors and if any grouping system could be determined, whether group membership was related to students’ academic achievement. A total of 152 undergraduate students voluntarily participated in the current study by completing the Study Behavior Inventory instrument. All participants were enrolled in fall semester of 2010 at Florida International University. The Q factor analysis technique using principal components extraction and a varimax rotation was used in order to examine the participants in relation to each other and to detect a pattern of intercorrelations among participants based on their self-reported study behaviors. The Q factor analysis yielded a two factor structure representing two distinct student types among participants regarding their study behaviors. The first student type (i.e., Factor 1) describes proactive learners who organize both their study materials and study time well. Type 1 students are labeled “Proactive Learners with Well-Organized Study Behaviors”. The second type (i.e., Factor 2) represents students who are poorly organized as well as being very likely to procrastinate. Type 2 students are labeled “Disorganized Procrastinators”. Hierarchical linear regression was employed to examine the relationship between student type and academic achievement as measured by current grade point averages (GPAs). The results showed significant differences in GPAs between Type 1 and Type 2 students at the .05 significance level. Furthermore, student type was found to be a significant predictor of academic achievement beyond and above students’ attribute variables including sex, age, major, and enrollment status. The study has several implications for educational researchers, practitioners, and policy makers in terms of improving college students' learning behaviors and outcomes.

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