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Psychological factors as mediators of the relationship between motor skills and physical activity in childrenEmadirad, Elnaz 03 January 2018 (has links)
The aim of this study was to examine the relationship between motor skills proficiency and participation in physical activity considering three mediators (ability beliefs, subjective task value, and expectancy of success) among Grade 3 children and considers those relationships in terms of sex-based differences.
The participants in this study were recruited from eight elementary schools from School District 61 in Victoria, British Columbia. Participants were 398 children (Girls: n = 201, Boys: n = 197). Motor skills were assessed using the Test of Gross Motor Development-2 (TGMD-2), physical activity participation was measured using the Children’s Assessment of Participation and Enjoyment (CAPE), and ability beliefs, subjective task value, and expectancy of success were measured using the Expectancy Value Questionnaire (EVQ).
Descriptive statistics showed that participation in physical activities was low with a mean score of 3.7 on a scale of 14. Percent of maximum (POMP) scores of the psychological variables were in the middle of the range of possible scores; specifically: 68.7%, 74.8%, and 72.7% for children’s ability beliefs, task value, and expectancy of success, respectively. A MANCOVA revealed a main effect of sex (F (7, 389) = 29.684, p < .001; Wilks’ Lambda = 0.652) between boys and girls in terms of their ability beliefs, expectancy of success, subjective task value, motor skills proficiency. A second MANCOVA examining the effect of sex on total raw scores of motor skills and physical activity also revealed a main effect of sex (F (2, 394) = 11.130, p < .001; Wilks’ Lambda = 0.947). Separate parallel multiple mediator models were created for both boys and girls. The mediator model for boys revealed an overall significant effect of .044 (p < .001). The mediator model for girls revealed an overall significant effect of .031 (p < .05). The mediation model for boys showed that the psychological variables in this study did not mediate the relationship between motor skills and physical activity participation. Instead, boys’ motor skills directly predicted their participation in physical activity. The girls’ mediation model showed mediation between motor skills and physical activity with subjective task value as the mediator. Girls’ motor skills did not have a direct relationship with their participation in physical activities.
Future research might: (1) include gender as a mediating factor in future mediation models, (2) explore mediation models with locomotor skills and object control skills as independent variables, and (3) explore the role of social and environmental factors such as the influence of parents, teachers, peers, culture, and society on children’s participation in physical activity. / Graduate
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誰會被主管排擠? 主管之部屬能力及威脅感知覺之探討 / Who Will Be Ostraized by Supervisor?The Study of Supervisors’ perception of Subordinates’ Competence and Threat黃順凱 Unknown Date (has links)
本研究旨在探討主管排擠部屬行為的前因,以部屬能力與威脅感作為解釋之機制,部屬能力可藉由威脅感對主管排擠產生影響。並以集體認同、知覺相似性作為部屬能力與威脅感間關係的調節變項;最後則探討主管排擠對於部屬幸福感與部屬主管承諾的影響。
本研究採用便利性取樣,使用對偶方式進行資料收集,研究對象為一般私人企業之員工,共發出紙本問卷328套,回收234套,回收率為71%,有效問卷為207套,有效回收率為63%。藉由SPSS 20與Lisrel 8.8等統計軟體進行資料分析,本研究結果顯示,部屬能力會透過威脅感對主管排擠產生正向的間接效果;當部屬越知覺主管對自己有排擠行為時,部屬之主管承諾越低;部屬知覺主管排擠對部屬幸福感則不具影響;而不論是集體認同或是知覺相似性,對於部屬能力與威脅感間的關係,皆無預期之調節效果。最後,針對本研究之結果進行討論,並說明理論貢獻、管理意涵、研究限制與未來研究建議。 / This study aimed at investigating the antecedents of supervisor ostracism. We used subordinates’ competence and threat from subordinates as mechanisms to illustrate the antecedents of supervisor ostracism. We hope to explore the indirect effect of subordinates’ competence on supervisor ostracism via threat from subordinates. Moreover, we proposed that collective identity and perceived supervisor-subordinate similarity can moderate the relationship between subordinates’ competence and threat from subordinates. We further explore the direct effect of supervisor ostracism on supervisor commitment and well-being.
The sample of this study is selected using convenience sampling, and the data is dyad-level data. Totally 328 questionnaires were issued and 234 were returned. The response rate is 71%. Among returned questionnaires, there were 207 effective questionnaires with the effective rate of 63%. The collected data was analyzed by SPSS 20 and Lisrel 8.8.
The result indicated that subordinates’ competence has positive indirect effect on supervisor ostracism via threat from subordinates. Although subordinate perceived supervisor ostracism has negative effect on supervisor commitment, it had no effect on well-being. Supervisor collective identity and perceived supervisor-subordinate similarity did not moderate the relationship between subordinates’ competence and threat from subordinates. Finally, theoretical and managerial implications of these findings are discussed.
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