The objective of this study was to investigate children's thoughts about human fatness, and then to see how those thoughts about obesity reflect the child's cognitive growth. Piaget's developmental framework was used to demonstrate that the changes which occur in the children's thinking about obesity follow the same developmental lines as their thinking about other problems. The concepts of identity and causality were used in the study to examine children's thinking about both physical and social objects. Four tasks were administered to three groups of children representative of Piaget's stages of cognitive thought: preoperational (4- 5-years-of-age), concrete operational (8- 9-years-of-age), and formal operational (12- 13-years-of-age). A clay and water task was used to measure conservation of objects, and Laurendeau and Pinard's Origin of Night questionnaire was used to measure physical causality. Thinking about identity as related to social objects was examined by a picture task and a clinical interview was used to measure causality as it relates to obesity of social objects, i.e., people. An age-related sequence of increasing complexity occurred in the development of the concept of obesity. Parallel development of social causality with the other measured tasks was indicated by significant correlations. Chi-square analyses indicated that children tend to think on the same absolute level (preoperational or operational) on the measured tasks. Analysis of data through use of Chi-square 2 x 2 tables and t-tests indicated that children progress in a different sequence of understanding according to their age. Younger children understand social causality before they understand physical causality or social identity. Physical conservation is the least understood of the tasks for the 4-5 year olds. Once children are able to think on a concrete level of reasoning, they understand physical causality at a higher level than they do social identity, physical conservation, and social causality. The understanding of obesity is at the lowest level of all tasks for 12-13 year olds. These findings expand Piagetian literature to include a specific example of the application of the concepts of identity and causality to the development of a concept (obesity) dealing with people. It was shown that the understanding of obesity in humans is the last of the measured tasks; i.e., physical conservation, physical causality, social identity, and social causality to be understood on a formal level. The information from this investigation can be used to plan programs for children to help them obtain the information about obesity at a level they can understand and internalize. The findings can also be used as a guide for longitudinal studies on the same topic. / Ph. D.

The purpose of this study was to examine children's cognitive interpretations of the physiological symptoms of panic. Children from grades 3, 6, and 9 imagined experiencing the physical symptoms of panic and reported their attributions for these symptoms. Conceptions of common illnesses and panic attacks were assessed. It was hypothesized that girls would make more internal, catastrophic (I/C) attributions to the symptoms of panic than would boys, and that older children would make more I/C attributions relative to younger children. These hypotheses were based on the suggestion that notions of external causality characterize the cognitions of younger children (Nelles & Barlow, 1988), and that girls tend to report higher levels of anxiety and fear relative to boys (Ollendick, King, & Frary, 1989; Ollendick, Yule, & Ollier, 1991). It was also suggested that older children would display more mature conceptions of illness than younger children, and that girls would be more advanced in their understanding of illness than would boys. No differences were predicted between children's level of understanding common illnesses and panic attacks (Nelles & Barlow, 1988). Finally, the contribution of several individual factors to children's cognitive interpretations was investigated. No significant grade or gender differences were found for tendency to make I/C attributions. While no gender differences were evident, a significant main effect for grade was found for conceptions of illness, and understanding of panic attacks was more advanced relative to common illnesses. Finally, internal attributional style in response to negative outcomes and anxiety sensitivity were significant predictors of tendency to make I/C attributions. The relevance of these findings to understanding children's cognitive interpretations of panic symptomatology are discussed. / Master of Science

Thesis (M.S.W.)--University of Hong Kong, 1990.

The purpose of this study was to examine the interrelationships among the themes of Taylor's (1983) Cognitive Adaptation Theory for schoolagers with asthma. In addition, the influence of Taylor's (1983) themes on the children's social behavior was also tested. The three themes of Taylor's (1983) theory included A Search for Meaning, Restoration of Self-Esteem, and Gaining a Sense of Self-Mastery. Two components of A Search for Meaning included the Impact of Disease and the Cause of Disease. Relating Behaviors-Cooperating Behaviors was the index of social behavior. Forty-five Caucasian children between the ages of seven and ten years who had a diagnosis of asthma and did not have any mental disability were the convenient sample. Data were collected in the children's homes. Three questionnaires and two interviews were used to measure Taylor's (1983) themes and Relating Behaviors-Cooperating Behaviors. Descriptive statistics were used to answer the research questions and provide additional findings related to the conceptual framework. Two relationships among Taylor's (1983) themes were significant (p ≤ .05). Children who reported greater impact of asthma upon their lives (Impact of Disease) reported lower self-esteem (Restoration of Self-Esteem). Children who reported greater impact of asthma upon their lives (Impact of Disease) also reported a lesser internal locus of control orientation (Gaining a Sense of Self-Mastery). The Cause of Disease was the only concept which correlated significantly with Relating Behaviors-Cooperating Behaviors and thus, influenced this concept. Children who named a cause for their asthma reported more relating and cooperating skills. The Cause of Disease explained 6.5% of the variance for Relating Behaviors-Cooperating Behaviors. Characteristics of the children's asthma condition and their families were significantly related to the themes of Taylor's (1983) theory and Relating Behaviors-Cooperating Behaviors. Developmental differences were found from age group analyses. The classification of the children's responses for the cause of asthma and reliability and validity estimation for the HIIS were also reported. Five potential sources of error which may have affected the findings included design, instrument, subject, investigator, and specification errors. Suggestions for future research with the conceptual framework were discussed.

published_or_final_version / Social Work / Master / Master of Social Work

published_or_final_version / Education / Master / Master of Education

Individual differences in learning with a focus on neuropsychologic anomalies underlying learning strategies has been receiving attention in recent years. As a result, interest has increased in quantifying and analyzing cognitive behavior more directly. One of the tools that measures brain activity directly is the evoked potential (EP). This study investigated the EP recorded from the brainstem region, often referred to as brainstem auditory evoked response (BAER). The importance of BAERs in detecting pathology in the brainstem has been well documented. BAERs have also been advocated as an important tool in the electrophysiological assessment of children's brainstem function relative to learning disorders. BAER latencies were recorded, therefore, from a small group of average children and studied in relation to the BAER stability overtime. Intra-individual differences were compared to between-subject differences. So little BAER research has been performed with children that more studies are needed just to clarify normal variability of BAER parameters. The present investigation studied intra-individual differences in the stability of BAER latencies over time in young subjects with normal hearing, for comparing with and contrasting to previous results from a study using an adult sample. BAER latencies were recorded for left, right, and binaural ear presentations. A coefficient of stability (CS) was calculated for each peak, for each ear over time. ANOVA results showed significance for peak and peak by ear interaction. Several BAER parameters were examined within-subjects that may not be revealed in studies between-subjects. Profiles for intra-aural differences over time showed individual differences in the stability of the BAER. Although there appeared to be a trend toward inter-ear differences the differences did not reach significance. The profiles indicated considerable intra-aural pattern replicability, and a trend toward increase in stability over time. The results supported a need for future research on laterality studies, more age specific normative data and correlational studies in relation to individual cognitive differences.

Formal learning contexts often present information to learners in an inert and highly abstract form, making it unlikely that learners would ever use this information in their every-da y lives. Learners do, however, show a greater propensity for retaining information that is seen as having relevance in their lives . Constructivism is an educational paradigm that has gained popularity amongst educationists. The core tenet of this paradigm is that learners learn through interaction with their environment and that all knowledge construction is based on previous life experience. Information that is presented to learners in a contextualised form not only has a better chance of being retained in long-term memory, but also has a greater likelihood of being applied in relevant life situations. This publication deals with the research, design and delivery of important information concerning diseases that have a major impact in Southern Africa. Firstly, learners at the University of Natal, Durban were polled for their existing knowledge concerning four widespread diseases, namely HIV/AIDS , tuberculosis, malaria and cancer. Aspects of these diseases where learners demonstrated a low level of awareness were defined as the primary learning object ives for an educational 3D- immersive microworld. Areas of knowledge concerning the transmission, symptomatic expression, biology and prevention of these diseases were generally not well represented in the learner sample. Hence, information regarding these aspects is presented to learners in a contextualised form within the microworld. Motivation for learners to play in this microworld is provided by a storyline that was researched and written for the portal. In addition, the model used in the storyline design was evaluated for its effectiveness as a tool to be used in the planning of future educational games. A model, the Puzzle Process model, was proposed to inform the design of puzzle interfaces for these types of interactive learning environments, and puzzle interfaces were designed for the virtual environment according to the model guidelines. The learning environment was tested as part of the formative evaluation with a small sample of learners . The testing process made use of both quantitative and qualitative methodologies to evaluate the effectiveness of the learning environment as a possible learning tool. Comparison of pre- and post-gameplay questionnaires showed that learners gained a more indepth and richer understanding of the topics being dealt with in the portal. In particular, the puzzle objects situated in the environment stimulated learners to negotiate meanings for the puzzle interfaces and, in the process, encouraged learners to discuss the topic being dealt with. Results from this study also show that the longer learners discussed and negotiated a certain knowledge domain, the greater their increase in richness of information was for that knowledge domain after gameplay. These results highlight the importance of social dialogue in the knowledge construction process and suggest that environments like these have great potential based on their ability to encourage learners to talk to one another and their facilitators while negotiating mutually acceptable knowledge. The original Puzzle Process model, as well as the Game Achievement model and the Game Object model were modified to account for the need for social dialogue and content. These more comprehensive models are instrumental for use in future virtual world environment design. / Thesis (Ph.D.)-University of KwaZulu- Natal, Durban, 2004

Parent involvement in treatment programmes for child anxiety disorders aims to change the parental behaviours and cognitions implicated in the development and maintenance of childhood anxiety disorders. However, very few studies have included parental behaviours and cognitions as outcomes, and the methodological shortcomings of those that have, preclude clear conclusions. This study aimed to provide the first comprehensive examination of change in parental behaviours and cognitions after a guided parent-delivered cognitive-behavioural therapy (CBT) programme compared to a waitlist control. The association between change in parental behaviours and cognitions with child treatment outcome was also considered. Eighty-eight children aged 7 to 12 years old with a diagnosed anxiety disorder were randomised to either an 8-week guided parent-delivered CBT programme (n=41) or waitlist control group (n=47). None of the parents met diagnostic criteria for an anxiety disorder. Observational measures of parental behaviours whilst their child completed an anxiety-provoking task were taken before and after the intervention. Parent expectations were also measured of their child's and own response in the laboratory task, as well as for hypothetical situations that were ambiguous for whether or not they presented a threat. The treatment programme was not associated with greater change in parental behaviours compared to the waitlist control. After the treatment programme there was a change in specific parental cognitions, in that parents perceived themselves and their child to have more control in hypothetical threat ambiguous situations. Change in parental behaviour and cognition was not significantly associated with child treatment outcomes. The results suggest that guided parent-delivered CBT can increase parental self-efficacy in the management of child anxiety. However, the absence of any association of treatment with other parental cognitions or behaviours questions the salience of parental change in the treatment of childhood anxiety disorders.

God-concepts of 24 third to sixth grade evangelical Christian children were compared with the children‘s logical thinking abilities in a mixed-method study. Measurements included the Children‘s Interview and the Group Assessment of Logical Thinking (GALT). God-concepts among the children were Biblical, comforter, communicates, creator, empowering, protector, provider, purposeful, human characteristics, lives in heaven, male, counselor, God is Jesus, all-knowing, loving, perfect, powerful, real, and parental. The majority of concrete thinkers conceptualized God as a gracious guide. The majority of transitional thinkers viewed God also as a gracious guide as well as a distant divinity. Implications were given for religious educators to develop a model for age-appropriate instruction and curriculum and to equip parents to promote spiritual development with children at home.