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In this study, we examined the main and interactive effects of students' goal orientations, perceived competence and perceptions of the motivational climate on the motivational styles advanced by self-determination theory. The participants were 328 British secondary school students aged 13.6 +/- 0.6 years (mean +/- s). Moderated hierarchical regression analyses revealed task orientation, perceived competence and perceptions of a mastery climate to be positive predictors of self-determined styles of motivation. Perceived competence in physical education was negatively associated with amotivation. Significant interaction effects for mastery climate x task orientation and for ego orientation x perceived competence emerged. The results indicate that: (1) for students endorsing a high task orientation, the perception that the class climate was high in mastery cues was associated with increased intrinsic motivation; and (2) for students high in ego orientation, the belief that one was competent increased, while perceptions of incompetence attenuated intrinsic motivation. Additionally, a three-way interaction between ego orientation, performance climate and perceived competence emerged. In light of achievement goal and self-determination frameworks, we propose that studying the potential interplay between both individual and situational goal perspectives and the moderating effect of perceived competence may further enhance our understanding of motivation in physical education. 相似文献
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Head, eye and arm coordination in table tennis 总被引:1,自引:0,他引:1
The aim of this study was to determine the role of head, eye and arm movements during the execution of a table tennis forehand stroke. Three-dimensional kinematic analysis of line-of-gaze, arm and ball was used to describe visual and motor behaviour. Skilled and less skilled participants returned the ball to cued right or left target areas under three levels of temporal constraint: pre-, early- and late-cue conditions. In the pre- and early-cue conditions, both high and low skill participants tracked the ball early in flight and kept gaze stable on a location in advance of the ball before ball-bat contact. Skilled participants demonstrated an earlier onset of ball tracking and recorded higher performance accuracy than less skilled counterparts. The manipulation of cue condition showed the limits of adaptation to maintain accuracy on the target. Participants were able to accommodate the constraints imposed by the early-cue condition by using a shorter quiet eye duration, earlier quiet eye offset and reduced arm velocity at contact. In the late-cue condition, modifications to gaze, head and arm movements were not sufficient to preserve accuracy. The findings highlight the functional coupling between perception and action during time-constrained, goal-directed actions. 相似文献
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Since 1983, the Spencer S. Eccles Health Sciences Library has presented InfoFair, an annual event featuring presentations, exhibits, demonstrations, and workshops on computer and information topics of interest to health professionals and health information providers at the University of Utah Health Sciences Center and throughout Utah. The first InfoFair was held in response to an increasing number of inquiries from library users on how to search MEDLINE from their home or office computers. The focus of InfoFair has expanded and changed over the past nineteen years to reflect changes in library users' computer and information needs, concerns, and interests. While themes and programs have changed, a definite set of trends, guidelines, and procedures have developed based on the experience gained each year. The purpose of this paper is to review and evaluate the changes in InfoFair from 1983 to 2001 and to present information for use by other libraries for planning and presenting similar events. 相似文献
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