A comparison of visual search strategies of elite and non-elite tennis players through cluster analysis     

Nicholas P. Murray 《Journal of sports sciences》2017,35(3):241-246

Considerable research has documented that successful performance in interceptive tasks (such as return of serve in tennis) is based on the performers’ capability to capture appropriate anticipatory information prior to the flight path of the approaching object. Athletes of higher skill tend to fixate on different locations in the playing environment prior to initiation of a skill than their lesser skilled counterparts. The purpose of this study was to examine visual search behaviour strategies of elite (world ranked) tennis players and non-ranked competitive tennis players (n = 43) utilising cluster analysis. The results of hierarchical (Ward’s method) and nonhierarchical (k means) cluster analyses revealed three different clusters. The clustering method distinguished visual behaviour of high, middle-and low-ranked players. Specifically, high-ranked players demonstrated longer mean fixation duration and lower variation of visual search than middle-and low-ranked players. In conclusion, the results demonstrated that cluster analysis is a useful tool for detecting and analysing the areas of interest for use in experimental analysis of expertise and to distinguish visual search variables among participants’.  相似文献   

Using a situative perspective to gain a deeper understanding of how children’s strengths are related to social context     

Nick Bozic  Rebecca Lawthom  Janice Murray  Jeremy Oldfield 《Journal of Research in Special Educational Needs》2021,21(3):280-289

Over the last twenty-five years, there has been an increase in the availability of published checklists and schedules which allow practitioners to identify the strengths of children and young people, including those with special educational needs. While helpful, these assessments are unable to tell us about the nature of contextual factors which support the expression of particular strengths. In this study, we took a situative perspective to explore how specific classroom practices facilitated strengths. A multiple case study design was used to analyse practices nominated by three children/young people with special educational needs. Qualitative analysis revealed how aspects of practice afforded the opportunity for each child to participate in ways which they equated with their strengths. This style of strength-based assessment led to a more sustained examination of supportive practice features than would have been achieved through interview alone.  相似文献   

In the shadow of educational reform     

David R. Murray 《TechTrends》1989,34(2):8-10

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Young children are human beings     

Jane Murray 《International Journal of Early Years Education》2017,25(4):339-342

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Is adaptation to task complexity really beneficial for performance?     

Stephanie Pieschl  Elmar Stahl  Tom Murray  Rainer Bromme 《Learning and Instruction》2012,22(4):281-289

Theories of self-regulated learning assume that learners flexibly adapt their learning process to external task demands and that this is positively related to performance. In this study, university students (n = 119) solved three tasks that greatly differed in complexity. Their learning processes were captured in detail by task-specific questionnaires and computer-generated log files. Results indicate that students adapted almost all learning processes significantly to task complexity. For example, students accessed more hypertext pages for complex tasks than for simple tasks. However, this kind of adaptation was not consistently related to performance. For variables capturing learners’ self-regulation, such as the number of accessed hypertext pages, more pronounced adaptation was significantly and positively related to performance even when learners’ general processing depth was statistically controlled. Results were less consistent for variables capturing learners’ self-monitoring, such as their judged task complexity.  相似文献   

On the construction and proper proportions of boilers for the generation of steam     

Andrew Murray 《Journal of The Franklin Institute》1855,60(2):125-129

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What's So Special About Special Libraries?     

Tara E. Murray 《图书馆管理杂志》2013,53(4):274-282

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Implicit overcompensation: the influence of negative self-instructions on performance of a self-paced motor task   总被引：1，自引：0，他引：1  

de la Peña D  Murray NP  Janelle CM 《Journal of sports sciences》2008,26(12):1323-1331

According to Wegner's (1994) theory of ironic processes of mental control, self-instructions not to perform in a certain way, together with mental loads, can induce thoughts, emotions, and behaviours that are precisely the opposite of intention. Wegner's theory was tested against the implicit overcompensation hypothesis, which states that movement direction and magnitude are implicitly dictated by self-instruction, irrespective of load, promoting overcompensation of action. Two experiments were conducted using a golf-putting task. In Experiment 1, 48 participants were randomly assigned to one of four load conditions: cognitive, visual, auditory, and self-presentation/incentive. In the experimental trials, participants were instructed to make the putt, but it was emphasized that the putt should not be left short of the target. Following the instructional strategy, putts landed significantly longer than at baseline, irrespective of load. In Experiment 2, 36 participants were divided into one of three groups, without load, in which different instructional sets (control, not putting long, and not putting short) were emphasized. A significant interaction emerged, as participants putted significantly longer or shorter than controls depending on the instructional set given. Overall, our findings support the implicit overcompensation hypothesis. Theoretical and practical considerations are discussed.  相似文献   

The information needs and information seeking behaviour of medical research staff     

JaN. Murray  Esther Carey  Suzanne Walker 《Health information and libraries journal》1999,16(1):46-49

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The efficacy of peer modeling and social conflict in the acquisition of conservation.     

G J Botvin  F B Murray 《Child development》1975,46(3):796-799

Significant gains in conservation of number, amount, mass, and weight were made by 53 nonconservers (age 6-9) who either simply observed conserver's performance on mass and weight problems or argued with conservers in a social conflict situation about these problems. There were no significant differences in conservation performance between the modeling and social conflict treatments. It was suggested that the social conflict effect could be attributed to modeling effects.  相似文献