Understanding the relative contribution of technical and tactical performance to match outcome in Australian Football     

Christopher M Young  Wei Luo  Paul B Gastin  Daniel B Dwyer 《Journal of sports sciences》2020,38(6):676-681

ABSTRACT

The aim of this study was to assess if tactical and technical performance indicators (PIs) could be used in combination to model match outcomes in Australian Football (AF). A database of 101 technical PIs and 14 tactical PIs from every match in the 2009–2016 Australian Football League (AFL) seasons was merged. Two outcome measures Win-loss and Score margin were used as dependent variables. The top 45 ranked technical and tactical PIs from a feature selection process were used to model match outcome using decision tree and Generalised Linear Models (GLMs). Of the top 45 selected features, this included seven tactical PIs. The Win-loss-based Decision tree model achieved a classification accuracy of 89.0% and GLM 93.2%. A Score margin-based GLM achieved a root mean squared error (RMSE) of 6.9 points. A combined approach to the classification of match outcomes provided no improvement in model accuracy compared with previous literature. However, this study has established the relative importance of technical and tactical measures of performance in relation to successful team performance in AF.  相似文献   

Conflict-Framed News,Self-Categorization,and Partisan Polarization     

Jiyoung Han  Christopher M. Federico 《Mass Communication and Society》2017,20(4):455-480

Two experiments tested whether exposure to partisan conflict-framed news polarizes news consumers along party lines. Partisan self-categorization and motivated reasoning were examined as potential mediators of this effect. In two samples, path analyses showed that Democrats and Republicans exposed to partisan conflict-framed news adopted more polarized opinions on a disputed issue. This polarization effect was consistently mediated by perceived argument validity, an indicator of motivated reasoning; increased partisan self-categorization also mediated the effect, though less reliably and consistently. Thus, the present study adds to the literature on polarization by providing experimental evidence that exposure to conflict-framed news may contribute to partisan polarization. Theoretical and practical implications are discussed.  相似文献   

An Interdisciplinary Model of School Absenteeism in Youth to Inform Professional Practice and Public Policy     

Christopher A. Kearney 《Educational Psychology Review》2008,20(3):257-282

Problematic school absenteeism in youth has long been a complex and vexatious issue for psychologists, educators, and researchers from other disciplines. An examination of problematic school absenteeism from different perspectives over many decades has led to poor comparability across publications, policies, and assessment and intervention protocols. This article briefly reviews literature from psychology, social/criminal justice, and education to outline important factors that influence school absenteeism. An interdisciplinary model is then proposed with an emphasis on common terminology and definitions, comprehensiveness with respect to proximal and distal influences, fluidity and flexibility to account for rapid changes in this population, and user-friendliness to generate suggestions regarding assessment and intervention. Implications of the model are then drawn for professional practice and public policy, including recommendations for individual and systemic intervention at multiple levels of risk and severity.  相似文献   

College Students’ Time Management: a Self-Regulated Learning Perspective     

Wolters  Christopher A.  Brady  Anna C. 《Educational Psychology Review》2021,33(4):1319-1351

Educational Psychology Review - Despite its recognized importance for academic success, much of the research investigating time management has proceeded without regard to a comprehensive...  相似文献   

From research to reality: Australian evidence-based practice in autism education     

Traci-Ann Garrad  Christopher Rayner  Scott Pedersen  Monica Cuskelly 《Journal of Research in Special Educational Needs》2021,21(4):381-391

Many teachers are sporadic in using evidence-based practice (EBP) concerning students with autism spectrum disorder (ASD). Numerous reasons have been posited for this. However, no single study has worked to understand the relative importance of identified criteria in the EBP decision-making processes of teachers. Through the development of a new survey tool, the Evidence-Based Practice Innovation Survey (EBPIAS), an exploration of the decision-making process of Australian teachers in their adoption and cessation of EBP was undertaken. Teachers rated the perception that an EBP would meet the needs of their students as the most important criteria in determining their use of EBP. Conversely, the judgement that an EBP did not meet the needs of their student was the most important criteria in their decision to cease use. In comparing the relevant importance of identified criteria, teachers rated the perception of training as the second-lowest consideration in their decision to adopt and cease using EBP. Consequently, there may need to be greater promotion of, or information concerning, the training required by teachers for effective implementation supporting a more balanced and holistic approach in assessing criteria impacting the adoption of EBP by teachers in the first instance, potentially lowering cessation rates.  相似文献   

Choosing and leaving science in highly selective institutions     

A. Christopher Strenta  Rogers Elliott  Russell Adair  Michael Matier  Jannah Scott 《Research in higher education》1994,35(5):513-547

This study sought to discover some of the causes of initial interset in and atrition from the natural sciences and engineering among the students (N=5320) who entered four highly selective institutions in 1988, with particular attention to possible special causes for the disproportionate attrition of women from science. Though a smaller proportion of women (35 percent) than men (49 percent) were initially interested in science, gender added little to the prediction of such initial choice when preadmission measures of developed abilities were taken into account in regression analysis. Of the group of 2,276 students initially interested in science, 40 percent did not finally concentrate in science, and smaller proportions of women (48 percent) than of men (66 percent) persisted. The most significant cognitive, factor predicting these losses was low grades earned in science courses taken during the first two years of study. With grades held equal, gender was not a significant predictor of persistence in engineering and biology; gender added strongly to grades, however, as a factor associated with unusually large losses of women from a category that included the physical sciences and mathematics. Responses to a questionnaire administered in the fall of 1991 showed that science majors regarded their instruction as too competitive, with too few opportunities to ask questions, taught by professors who were relatively unresponsive, not dedicated, and not motivating. Students who defected from science did so largely because of the attraction of other fields, but many shared the criticism of overcompetitiveness and inferior instruction, along with the view that the work was too difficult. Several items were about elements of classroom instruction and atmosphere thought to be especially difficult for women (i.e., the chilly climate), but except for perceived competitiveness, women did not rate their classroom experiences as being more unpleasant than did men. This research was supported by grants from the Alfred P. Sloan Foundation and the National Science Foundation.  相似文献   

Modeling Zero-Inflated and Overdispersed Count Data: An Empirical Study of School Suspensions     

Christopher David Desjardins 《Journal of Experimental Education》2016,84(3):449-472

The purpose of this article is to develop a statistical model that best explains variability in the number of school days suspended. Number of school days suspended is a count variable that may be zero-inflated and overdispersed relative to a Poisson model. Four models were examined: Poisson, negative binomial, Poisson hurdle, and negative binomial hurdle. Additionally, the probability of a student being suspended for at least 1 day was modeled using a binomial logistic regression model. Of the count models considered, the negative binomial hurdle model had the best fit. Modeling the probability of a student being suspended for at least 1 day using a binomial logistic regression model with interactions fit both the training and test data and had adequate fit. Findings here suggest that both the negative binomial hurdle and the binomial logistic regression models should be considered when modeling school suspensions.  相似文献   

Introduction     

Christopher McIntosh 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2008,54(1):1-3

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Do allegations of emotional maltreatment predict developmental outcomes beyond that of other forms of maltreatment?     

Schneider MW  Ross A  Graham JC  Zielinski A 《Child abuse & neglect》2005,29(5):513-532

OBJECTIVES: To understand the features of child abuse/neglect (CA/N) allegations in cases with emotional maltreatment (EMT) allegations, as well as the features of the EMT allegations themselves, and to describe any associations of EMT with distinct impairments of children's behavior, emotion and functioning. METHOD: The sample consisted of 806 high-risk children, 545 with one or more maltreatment reports to CPS. The Maltreatment Classification System was used to record the number and severity levels of maltreatment allegations, which compared cases with and without EMT. Multiple regression analyses were conducted using 10 outcome scales from the Child Behavior Checklist, Vineland Screener, and Trauma Symptom Checklist. Successive blocks of predictor variables included demographics, maltreatment classification variables, maternal and family characteristics, and study site. RESULTS: When there were allegations of EMT as well as CA/N in a CPS case-record (by age 8), the CA/N allegations tended to be either more frequent or less severe than those kinds of allegations in cases without EMT. When neglect was alleged to occur with EMT, neglect allegations outnumbered allegations of EMT. However, when sexual abuse allegations were accompanied by EMT allegations, there were more EMT allegations than sexual abuse allegations in the cases. Higher severity ratings for EMT allegations than for physical abuse occurred when cases included any abuse. Distinctive effects of EMT subtypes were found between problems of safety/restriction and self-reported anger symptoms, and between problems of self-esteem/autonomy and posttraumatic stress. CONCLUSION: Differences exist between the CA/N allegations in cases with and without EMT. Having few cases containing only EMT allegations made it difficult to assess distinctive harm associated with EMT. Certain types of EMT allegations were associated with increases in children's anger and posttraumatic stress.  相似文献   

多层混合法研究设计:挑战与优势     

戴杰思  谢萍 《教育研究》2021,42(2):140-150

与目前运用单一方法的研究相比,多层混合法研究作为一种重要的研究范式,其研究结果可能因更严谨可靠而对政策和实践产生更大的影响。运用多层混合法不仅需要提升研究者的技术能力,还需要转变他们的思维方式。对大多数研究者来说,这可能是一个极大的挑战。当然,这并不是说所有的研究都应该寻求对他人的直接影响;相反,研究的目的各有不同。尽管如此,不同研究领域的研究者一致认为,教师课堂内外赖以生存的社会环境的生态具有不可预测性。对一项在英格兰实施的研究项目进行剖析,探讨多层混合法在教育研究中的应用,发现与单视角的量化研究、元分析或者纯质性研究相比,多层混合法可能提供更微妙的、更细颗粒度的、更严谨可信的、基于循证的领导力研究,从而更为全面地揭示校长如何通过领导力角色、领导行为实现并且保持学校的可持续发展。  相似文献