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Al-Abood SA Bennett SJ Hernandez FM Ashford D Davids K 《Journal of sports sciences》2002,20(3):271-278
We assessed the effects on basketball free throw performance of two types of verbal directions with an external attentional focus. Novices (n = 16) were pre-tested on free throw performance and assigned to two groups of similar ability (n = 8 in each). Both groups received verbal instructions with an external focus on either movement dynamics (movement form) or movement effects (e.g. ball trajectory relative to basket). The participants also observed a skilled model performing the task on either a small or large screen monitor, to ascertain the effects of visual presentation mode on task performance. After observation of six videotaped trials, all participants were given a post-test. Visual search patterns were monitored during observation and cross-referenced with performance on the pre- and post-test. Group effects were noted for verbal instructions and image size on visual search strategies and free throw performance. The 'movement effects' group saw a significant improvement in outcome scores between the pre-test and post-test. These results supported evidence that this group spent more viewing time on information outside the body than the 'movement dynamics' group. Image size affected both groups equally with more fixations of shorter duration when viewing the small screen. The results support the benefits of instructions when observing a model with an external focus on movement effects, not dynamics. 相似文献
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Visual search and biological motion perception in tennis 总被引：1，自引：0，他引：1
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Lois Barclay Murphy 《Journal of Experimental Education》2013,81(1):79-90
Using three stratified random samples of thirty-two teachers each from grades 2 through 5, a 3-group posttest-only control group research design was employed to determine the effectiveness of an in-service program utilizing simulation techniques on teacher awareness of pupils’ instructional reading levels. Pupils were selected randomly from each teacher’s classroom. Differences between the grade level of pupils’ readers and their performance on McCracken’s Standard Reading Inventory constituted the measure of teacher awareness. The importance of teachers’ grade level assignments and the time of year when this in-service training is conducted were also evaluated.Findings indicated that this in-service program is effective only when conducted before school begins. There was a significant difference in teacher awareness among grade levels but a contravertible one between primary and intermediate levels. 相似文献
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Simon McGrath 《Compare》2000,30(1):67-84
As South Africa enters the Mbeki Presidency so the fortunes of the country are thrown into sharp relief. One of the central elements determining South Africa's short- to medium-term future will be the success of educational transformation, particularly when it is directed to addressing issues of equity and economic development. This paper explores the 1998 reforms of the further education and training system in the context of broader questions of educational and economic transformation in South Africa. 相似文献
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