Pang Suet-Yee. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2002. / Includes bibliographical references (leaves 85-87). / Abstracts in English and Chinese. / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Overview --- p.1 / Chapter 1.1.1 --- Survival Analysis --- p.2 / Chapter 1.1.2 --- Tree、-structured Statistical Method --- p.2 / Chapter 1.1.3 --- Mortality Study --- p.3 / Chapter 1.2 --- Motivation --- p.3 / Chapter 1.3 --- Background Information --- p.4 / Chapter 1.4 --- Data Content --- p.7 / Chapter 1.5 --- Thesis Outline --- p.8 / Chapter 2 --- Imputation and File Splitting --- p.10 / Chapter 2.1 --- Imputation of Missing Values --- p.10 / Chapter 2.1.1 --- Purpose of Imputation --- p.10 / Chapter 2.1.2 --- Procedure of Hot Deck Imputation --- p.11 / Chapter 2.1.3 --- List of Variables for Imputation --- p.12 / Chapter 2.2 --- File Splitting --- p.14 / Chapter 2.2.1 --- Splitting by Gender --- p.14 / Chapter 2.3 --- Splitting for Validation Check --- p.1G / Chapter 3 --- Cox Hazard Model --- p.17 / Chapter 3.1 --- Basic Idea --- p.17 / Chapter 3.1.1 --- Survival Analysis --- p.17 / Chapter 3.1.2 --- Survivor Function --- p.18 / Chapter 3.1.3 --- Hazard Function --- p.18 / Chapter 3.2 --- The Cox Proportional Hazards Model --- p.19 / Chapter 3.2.1 --- Kaplan-Meier Estimate and Log-Rank Test --- p.20 / Chapter 3.2.2 --- Hazard Ratio --- p.23 / Chapter 3.2.3 --- Partial Likelihood --- p.24 / Chapter 3.3 --- Extension of the Cox Proportional Hazards Model for Time-dependent Variables --- p.25 / Chapter 3.3.1 --- Modification of the Cox's Model --- p.25 / Chapter 3.4 --- Results of Model Fitting --- p.26 / Chapter 3.4.1 --- Extract the Significant Covariates from the Models --- p.31 / Chapter 3.5 --- Model Interpretation --- p.32 / Chapter 4 --- CART --- p.37 / Chapter 4.1 --- CART Procedure --- p.38 / Chapter 4.2 --- Selection of the Splits --- p.39 / Chapter 4.2.1 --- Goodness of Split --- p.39 / Chapter 4.2.2 --- Type of Variables --- p.40 / Chapter 4.2.3 --- Estimation --- p.40 / Chapter 4.3 --- Pruning the Tree --- p.41 / Chapter 4.3.1 --- Misclassification Cost --- p.42 / Chapter 4.3.2 --- Class Assignment Rule --- p.44 / Chapter 4.3.3 --- Minimal Cost Complexity Pruning --- p.44 / Chapter 4.4 --- Cross Validation --- p.47 / Chapter 4.4.1 --- V-fold Cross-validation --- p.47 / Chapter 4.4.2 --- Selecting the right sized tree --- p.49 / Chapter 4.5 --- Missing Value --- p.49 / Chapter 4.6 --- Results of CART program --- p.51 / Chapter 4.7 --- Model Interpretation --- p.53 / Chapter 5 --- Model Prediction --- p.58 / Chapter 5.1 --- Application to Test Sample --- p.58 / Chapter 5.1.1 --- Fitting test sample to Cox's Model --- p.59 / Chapter 5.1.2 --- Fitting test sample to CART model --- p.61 / Chapter 5.2 --- Comparison of Model Prediction --- p.62 / Chapter 5.2.1 --- Misclassification Rate --- p.62 / Chapter 5.2.2 --- Misclassification Rate of Cox's model --- p.63 / Chapter 5.2.3 --- Misclassification Rate of CART model --- p.64 / Chapter 5.2.4 --- Prediction Result --- p.64 / Chapter 6 --- Conclusion --- p.67 / Chapter 6.1 --- Comparison of Results --- p.67 / Chapter 6.2 --- Comparison of the Two Statistical Techniques --- p.68 / Chapter 6.3 --- Limitation --- p.70 / Appendix A: Coding Description for the Health Factors --- p.72 / Appendix B: Log-rank Test --- p.75 / Appendix C: Longitudinal Plot of Time Dependent Variables --- p.76 / Appendix D: Hypothesis Testing of Suspected Covariates --- p.78 / Appendix E: Terminal node report for both gender --- p.81 / Appendix F: Calculation of Critical Values --- p.83 / Appendix G: Distribution of Missing Value in Learning sample and Test Sample --- p.84 / Bibliography --- p.85

梅惜靑. / 論文(社會工作碩士) -- 香港中文大學硏究院社會工作學部, 1997. / 參考文獻: leaves 102-112. / Mei Xiqing. / 鸣谢 --- p.ii / 硏究摘要 --- p.ii / Chapter 第一章 --- 導言 --- p.1 / Chapter 第一節 --- 人口老化 --- p.1 / Chapter 第二節 --- 院舍生活 --- p.2 / Chapter 第三節 --- 硏究目標 --- p.4 / Chapter 第二章 --- 文獻探討 --- p.5 / Chapter 第一節 --- 充權的意義 --- p.5 / Chapter 第二節 --- 充權在社會工作中的概念 --- p.7 / Chapter 第三節 --- 充權在老人服務中的概念 --- p.11 / Chapter 第四節 --- 充權在老人院舍服務中的概念 --- p.12 / Chapter 第三章 --- 理論架構 --- p.17 / Chapter 第一節 --- 充權的定義 --- p.17 / Chapter 第二節 --- 應用充權的工作方法 --- p.18 / Chapter 第四章 --- 社會工作應用充權的涵義 --- p.21 / Chapter 第一節 --- 充權取向的社會工作 --- p.21 / Chapter 第二節 --- 應用充權的原則和要素 --- p.22 / Chapter 第三節 --- 充權的實務策略 --- p.23 / Chapter 第四節 --- 充權工作員指引 --- p.23 / Chapter 第五節 --- 應用充權之案例效果 --- p.25 / Chapter 第五章 --- 硏究方法 --- p.32 / Chapter 第一節 --- 硏究原因 --- p.32 / Chapter 第二節 --- 硏究目的 --- p.33 / Chapter 第三節 --- 硏究方法 --- p.33 / Chapter 第四節 --- 硏究工具 --- p.40 / Chapter 第五節 --- 數據分析 --- p.41 / Chapter 第六章 --- 結果分析 --- p.43 / Chapter 第一節 --- 充權小組資料分析 --- p.43 / Chapter 第二節 --- 問卷資料分析 --- p.76 / Chapter 第三節 --- 資料分析總結 --- p.81 / Chapter 第七章 --- 結論和建議 --- p.88 / Chapter 第一節 --- 結論 --- p.88 / Chapter 第二節 --- 硏究資料對院舍工作的含義 --- p.89 / Chapter 第三節 --- 建議 --- p.91 / 附錄（一） --- p.93 / 附錄（二） --- p.98 / 附錄（三） --- p.99 / 附錄（四） --- p.100 / 附錄（五） --- p.101 / 參考書目 --- p.102

published_or_final_version / Housing Management / Master / Master of Housing Management

published_or_final_version / Gerontology / Master / Master of Social Sciences

published_or_final_version / Public Health / Master / Master of Public Health

published_or_final_version / Social Work / Master / Master of Social Sciences

published_or_final_version / Social Work / Master / Master of Social Sciences

published_or_final_version / Social Work / Master / Master of Social Sciences

published_or_final_version / Gerontology / Master / Master of Social Sciences

Introduction: Resilience is an important trait and mechanism for older adults facing adversity in their later life. Physical activity has been established as an important determinant of mental health among older adults, in which relationship of resilience may play a mediating role. In order to examine the relationships among resilience, physical activity, and mental health in older adults, the current project is designed to conduct three studies. Study-1 aims to use qualitative method to identify the characteristics that contribute to resilience in a group of community-dwelling older adults in Hong Kong. Study-2 aims to develop and validate an age-specific resilience scale, named as "Resilience Scale for Chinese Older Adults (RSCOA)". Study-3 aims to test a model in which physical activity is hypothesized to influence mental health in path mediated by resilience. Methods: Twenty-five Chinese older adults (2 males, 23 females) aged 69 to 100 years (M=80.00, SD=39.08) were included in Study-1. Interviews were conducted to collect information about the adverse events in their lives, as well as their attitudes towards adversity and the beliefs underlying their approaches to overcoming adversity. The transcripts were analysed using qualitative content analysis. In Study-2, a sequential approach was used to develop the RSCOA in three stages. In stage 1, scale candidate items were generated and initial content validity of the RSCOA were explored. In stage 2, the factorial structure of the RSCOA was extracted using exploratory factor analysis. In stage 3, exploratory structural equation modeling was conducted to test the structure. The reliability and validity of the RSCOA were also examined. In Study-3, cross-sectional data was collected from a sample of 293 Chinese older adults [60 males, 233 females; age from 65 to 95 years old (M=76.58, SD=7.02)] from eight community senior centres located in three districts in Hong Kong. Correlation analyses were performed and path analysis was employed to assess the associations among physical activity, resilience and mental health variables. Results: In Study-1, 7 themes were emerged from the interviews: 1). Equanimity- the realisation that life has both joys and sorrows. 2). Positive attitudes towards life. 3). Meaningfulness- the realisation that life has a purpose and is full of hope. 4). Self-reliance- a belief in one's capabilities and the realisation that each person's life path is unique. 5). Social support- which comes from family and friends, health care professionals, staff in the senior centres and others' appraisal. 6). Environmental support- which includes the support from neighbours, community senior centres and government. 7). Spirituality and faith- which can take the form of a belief in destiny, gratitude or religious faith. For the scale development and validation, a pool of 70 candidate items for RSCOA was established with good content validity in stage 1. In stage 2, seven factors, namely perseverance, self-reliance, spirituality, social support, living in the moment, environmental support, and meaningfulness, reflecting internal, external and existential dimensions, were identified and reflected in 27 items in the construct of resilience. In stage 3, the 27-item RSCOA was further examined, by which 3 items were deleted to achieve acceptable internal consistency (α= 0.87) and good concurrent as well as construct validities, and finally a 24-item RSCOA was confirmed. The measurement model displayed satisfactory model fit and proven invariant across gender. Building on the three path models, it was found that significant mediation effects of resilience on the relations from physical activity to depression (β =-.54, p=.002), from physical activity to loneliness (β=-.25, p=.005), as well as from physical activity to psychological well-being (β=.37, p=.008). In sum, the results confirmed that resilience mediates relationship from physical activity to mental health among the older adults. Conclusion: The qualitative analysis found that resilience of the Hong Kong older adults is characterised by internal, external and existential factors. A reliable and valid age-specific instrument for measurement of resilience in Chinese older people was developed. Older adults who are more physically active reported greater psychological well-being and less mental health problems, and the effects were mediated by resilience. The results may be useful for developing interventions that aim at assisting older adults to enhance the positive experiences and mental health in their lives.