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Nikki Rommers Mireille Mostaert Lennert Goossens Roel Vaeyens Erik Witvrouw Matthieu Lenoir 《Journal of sports sciences》2019,37(2):196-203
This study investigated differences in generic and soccer specific motor coordination, as well as speed and agility depending on age and maturity in elite youth soccer players (U10-U15, N = 619). Measurements included body height, body weight and sitting height to estimate age at peak height velocity (APHV); three Körperkoordinationstest für Kinder subtests (i.e. jumping sideways (JS), moving sideways (MS), balancing backwards (BB)) to assess generic motor coordination; the UGent dribbling test for soccer specific motor coordination; a 5m/30m sprint and T-test for speed and agility, respectively. Age specific z-scores of the predicted APHV identified players as earlier, on time or later maturing. (M)ANOVA analyses showed significant age by maturity interaction effects for the speed and agility test cluster, revealing maturity related differences in U14 and U15 players. Next to an overall higher performance with age for all test clusters (η2 0.080–0.468), earlier maturing players outperformed their later maturing peers in 5m/30m sprinting. The opposite was seen for JS and BB. So, players’ maturity status should be taken into account to adequately value performance in talent identification. Also, the focus on characteristics that appear to be minimally biased by an earlier maturational timing (i.e. motor coordination) should be increased. 相似文献
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Anders Jake Has Silvan Jerrim John Shure Nikki Zieger Laura 《Educational Assessment, Evaluation and Accountability》2021,33(1):229-249
Educational Assessment, Evaluation and Accountability - The purpose of large-scale international assessments is to compare educational achievement across countries. For such cross-national... 相似文献
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This study examines how student practice of scientific argumentation using socioscientific bioethics issues affects both teacher expectations of students’ general performance and student confidence in their own work. When teachers use bioethical issues in the classroom students can gain not only biology content knowledge but also important decision-making skills. Learning bioethics through scientific argumentation gives students opportunities to express their ideas, formulate educated opinions and value others’ viewpoints. Research has shown that science teachers’ expectations of student success and knowledge directly influence student achievement and confidence levels. Our study analyzes pre-course and post-course surveys completed by students enrolled in a university level bioethics course (n = 111) and by faculty in the College of Biology and Agriculture faculty (n = 34) based on their perceptions of student confidence. Additionally, student data were collected from classroom observations and interviews. Data analysis showed a disconnect between faculty and students perceptions of confidence for both knowledge and the use of science argumentation. Student reports of their confidence levels regarding various bioethical issues were higher than faculty reports. A further disconnect showed up between students’ preferred learning styles and the general faculty’s common teaching methods; students learned more by practicing scientific argumentation than listening to traditional lectures. Students who completed a bioethics course that included practice in scientific argumentation, significantly increased their confidence levels. This study suggests that professors’ expectations and teaching styles influence student confidence levels in both knowledge and scientific argumentation. 相似文献
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ABSTRACTBy age 16 the attainment of most children in or on the edge of out of home care has fallen well behind the average for their age. This paper uses the English National Pupil Database to examine how much of this falling behind occurs before the age of seven, and how any subsequent decline relates to time in care as against time outside it. We compare the previous progress of three groups of 16-year-olds: 5175 looked after by the state (CLA), 17,392 in need but not in care (CIN), and 22,567 children matched with the CLA or CIN on initial attainment, special educational needs, and eligibility for free school meals. We found that the attainment of the CIN and those CLA not yet in care was around one standard deviation below the cohort average at age seven. It then fell relative to their peers while their rate of unauthorised absences and exclusions grew. Removal from home to care appeared to halt or greatly reduce this decline but did not, on average, reverse it. We conclude that educational interventions for CLA should also include CIN, start before seven, target both school and family, and exploit the educational opportunity which care provides. 相似文献
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Shelby Waldron J. D. DeFreese Johna Register-Mihalik Brian Pietrosimone Nikki Barczak 《Quest (Human Kinetics)》2020,72(1):1-18
ABSTRACTThere is a growing trend toward specialization in American youth sport, evident in the number of elite youth competitions and position statements from major medical organizations. Despite growing interest on this topic for kinesiology professionals within higher education, there is a dearth in research regarding the relationship between specialization and athlete health outcomes, especially psychosocial outcomes. This critical review describes specialization theory and the limited extant research on the costs and benefits of single-sport specialization. Topics include: (a) the proposed benefits of specialization from the performance perspective; (b) early specialization and alternative sport participation pathways; (c) the posited psychosocial and physical health risks of sport specialization; (d) ethical concerns; and (e) methodological issues and recommendations for future research. Deeper understanding of the costs and benefits of sport specialization has significant practical implications for youth athletes’ performance and well-being and for other relevant stakeholders in the youth sport system. 相似文献
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Nikki Aharonian 《Teacher Development》2016,20(2):213-228
As governments the world over continue to advocate the importance of teacher professional learning, researchers and practitioners continue to explore ways to enact that learning in meaningful ways. The value of narrative for teacher education has been widely discussed and several studies show that learning is significant when teacher–writers engage in written dialogue. This article is a critical, narrative-based account of the professional learning of Orly, an Israeli teacher. Written reflection and narrative play a crucial mediating role in her learning. This practitioner inquiry explores narrative writing as a means of learning, empowerment and professional renewal for Israeli educators. The author presents multiple ways in which language from a professional learning context can connect with classroom practice and discusses the dialogical nature of this kind of learning. 相似文献
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Over the last decade, there has been a steady increase in the number of Indigenous graduate research students in Australia, yet research and pedagogy has not kept pace with changes underway in the sector. From an extensive search of literature published between 2000 and 2017, 15 papers (representing 10 research projects conducted by seven teams or authors) were identified that addressed Indigenous graduate research student experience. Overall, the literature tends to focus on identifying barriers to completion, noting in particular the impact of financial difficulties, social isolation and racism. A research degree is a key site for the assertion and legitimation of Indigenous knowledges, and it is here that Indigenous students are navigating tensions between legitimated disciplinary practices of the centre and the peripheral status of Indigenous knowledges. We, therefore, adopt Herbert's ‘centre–periphery’ model to interpret the research, arguing that this framework explains the focus on barriers, the neglect of pedagogy centred on academic excellence and student strengths, and research relationships between students and Indigenous communities. Our review identifies the need for a systematic research agenda specifically focused on Indigenous student success at the graduate research level, and looking internationally in order to assess the performance and strategies of Australian higher education providers in comparison to international institutions meeting the aims of First Nations research communities. This approach, we suggest, should move beyond an analysis of the nature of enablers and barriers to focus on Indigenous Higher Degree by Research success. 相似文献
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Rule violations are likely to serve as key contexts for learning to reason about public identity. In an initial study with 91 children aged 4–9 years, social emotions and self‐presentational concerns were more likely to be cited when children were responding to hypothetical vignettes involving social‐conventional rather than moral violations. In 2 further studies with 376 children aged 4–9 years, experimental manipulations of self‐focused attention (either by leading children to believe they were being video‐recorded or by varying audience reactions to transgressions) were found to elicit greater attention to social evaluation following moral violations, although self‐presentational concerns were consistently salient in the context of social‐conventional violations. The role of rule transgressions in children’s emerging self‐awareness and social understanding is discussed. 相似文献
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Statistical analysis and comparison of library print and online holdings are used to reduce shelf area and inform index back-file purchases. Nikki DeMoville of California Polytechnic State University’s Robert E. Kennedy Library combined Counting Online Usage of Networked Electronic Resources (COUNTER) JR2 Access Denied usage reports, holdings information, and print circulation data to identify journals exhibiting a high desirability for online access and low print circulation. In this presentation, DeMoville shared how further combination of this data with ScienceDirect quote lists for back-file journal packages and Web of Science metrics could be used to support the efficient de-selection of print journals, allowing the library to recover the maximum amount of physical space while also acquiring backfile access to those titles most frequently needed in electronic format. The presentation detailed the workflows and comparative methodology used to reach collection management and development decisions for journal coverage, with an emphasis on before and after metrics. 相似文献