Combined individual scrummaging kinetics and muscular power predict competitive team scrum success     

Andrew Green  Chloe Dafkin  Samantha Kerr  Warrick McKinon 《European Journal of Sport Science》2017,17(8):994-1003

Scrummaging is a major component of Rugby Union gameplay. Successful scrummaging is dependent on the coordination of the forward players and the strength of the eight individuals. The study aim was to determine whether individual scrummaging kinetics and other candidate factors associated with scrummaging performance discriminate team scrum performances. Sixteen club-level forwards (stature: 1.80?±?0.1?m; mass: 99.0?±?18.2?kg) were initially divided into two scrummaging packs. A total of 10 various scrum permutations were tested, where players were randomly swapped between the two packs. Winning scrums were determined by two observers on opposite sides of the scrum. Fatigue (100?mm visual analogue scale (VAS)) and scrummaging effort (6–20 rating of perceived exertion (RPE)) were assessed following each scrum contest. Individual scrummaging kinetics were acquired through an instrumented scrum ergometer and muscular power indicated through vertical jump heights. Student’s t-tests were used to differentiate between winning and losing scrum packs. VAS and RPE were assessed using repeated measures ANOVAs. Winning scrum packs had significantly larger combined force magnitudes (p?<?.002), regardless of the player contribution calculations. Additionally, winning packs had less individual movement (p?=?.033) and higher combined vertical jump heights (p?<?.001) but were not significantly heavier (p?=?.759) than losing scrum packs. While perceived VAS and RPE values progressively increased (p?<?.001), no differences in the individual scrum magnitudes were observed between the 1st and 10th scrum (p?=?.418). The results indicated that the combination of individual forces, variation in movement and factors related to scrummaging performance, such as vertical jump height, were associated with team scrummaging success.  相似文献   

Early manifestations of intellectual performance: Evidence that genetic effects on later academic test performance are mediated through verbal performance in early childhood     

Chloe Austerberry  Pasco Fearon  Angelica Ronald  Leslie D. Leve  Jody M. Ganiban  Misaki N. Natsuaki  Daniel S. Shaw  Jenae M. Neiderhiser  David Reiss 《Child development》2022,93(2):e188-e206

Intellectual performance is highly heritable and robustly predicts lifelong health and success but the earliest manifestations of genetic effects on this asset are not well understood. This study examined whether early executive function (EF) or verbal performance mediate genetic influences on subsequent intellectual performance, in 561 U.S.-based adoptees (57% male) and their birth and adoptive parents (70% and 92% White, 13% and 4% African American, 7% and 2% Latinx, respectively), administered measures in 2003–2017. Genetic influences on children's academic performance at 7 years were mediated by verbal performance at 4.5 years (β = .22, 95% CI [0.08, 0.35], p = .002) and not via EF, indicating that verbal performance is an early manifestation of genetic propensity for intellectual performance.  相似文献   

Isolation,resilience, and faith: Experiences of Black Christian students in biology graduate programs     

Angela N. Google  Chloe D. Bowen  Sara E. Brownell  M. Elizabeth Barnes 《科学教学研究杂志》2024,61(3):591-624

To increase participation of students of color in science graduate programs, research has focused on illuminating student experiences to inform ways to improve them. In biology, Black students are vastly underrepresented, and while religion has been shown to be a particularly important form of cultural wealth for Black students, Christianity is stigmatized in biology. Very few studies have explored the intersection of race/ethnicity and Christianity for Black students in biology where there is high documented tension between religion and science. Since graduate school is important for socialization and Black students are likely to experience stigmatization of their racial and religious identity, it is important to understand their experiences and how we might be able to improve them. Thus, we interviewed 13 Black Christian students enrolled in biology graduate programs and explored their experiences using the theoretical lens of stigmatized identities. Through thematic content analysis, we revealed that students negotiated experiences of cultural isolation, devaluation of intelligence, and acts of bias like other racially minoritized students in science. However, by examining these experiences at the intersection of race/ethnicity and religion, we shed light on interactions students have had with faculty and peers within the biology community that cultivated perceptions of mistrust, conflict, and stigma. Our study also revealed ways in which students' religious/spiritual capital has positively supported their navigation through biology graduate school. These results contribute to a deeper understanding of why Black Christian graduate students are more likely to leave or not pursue advanced degrees in biology with implications for research and practice that help facilitate their success.  相似文献   

终有一天     

Chloe Agnew 《英语辅导》2017,(6)

  相似文献   

Curriculum-Based Measurement as a Predictor of Performance on a State Assessment: Diagnostic Efficiency of Local Norms     

Karen L. Sandberg Patton  Amy L. Reschly  James Appleton 《Educational Assessment》2013,18(4):284-301

With the concurrent emphasis on accountability, prevention, and early intervention, curriculum-based measurement of reading (R-CBM) is playing an increasingly important role in the educational process. This study investigated the differences in diagnostic accuracy and utility between commercial norms and local norms when making high-stakes, local decisions. Scores on Dynamic Indicators of Early Literacy Skills Oral Reading Fluency for 1,374 students in Grades 2 to 5 were used to predict outcomes the Georgia reading achievement test, the Criterion Referenced Competency Tests. Local norms were generated using logistic regression and receiver operator characteristic curve analysis. The generated cut scores were compared to the commercial norms for differences in diagnostic efficiency. The generated cut scores were lower than the commercial norms and had improved diagnostic efficiency. Implications related to educational policy and the use of R-CBM are discussed.  相似文献   

A Review of Research on School Bullying Among African American Youth: An Ecological Systems Analysis     

Desmond Upton Patton  Jun Sung Hong  Abigail B. Williams  Paula Allen-Meares 《Educational Psychology Review》2013,25(2):245-260

School bullying and peer victimization are social problems that affect African American youth across various environmental contexts. Regrettably, many of the empirical research on bullying and peer victimization among African American youth has examined individual and direct level influences in silos rather than a constellation of factors occurring in multiple settings, such as home, school, and neighborhood. As a holistic model, the social–ecological framework provides a context with which to situate and interpret findings and draw implications from a broader psychosocial framework, which can be applicable across various systems. We utilize Bronfenbrenner’s (American Psychologist 32:513–531, 1977) social–ecological framework as a springboard for investigating the accumulation of risk contributors and the presences of protective factors in relation to school bullying and peer victimization of African American youth. More specifically, we examine the risk and protective factors occurring in the micro- (i.e., parents, peers, school, and community), exo- (i.e., parental stress), and macrosystem levels (i.e., hypermasculinity, and gender role beliefs and stereotypes). We then discuss implications for research and school-based practice.  相似文献   

Differences in Career Attitude and Career Knowledge for High School Students with and without Paid Work Experience     

Creed  Peter A.  Patton  Wendy 《International Journal for Educational and Vocational Guidance》2003,3(1):21-33

A large sample (N =1,279) of high school students was assessedusing the Career Maturity Inventory (CDI-A;Lokan, 1984). The two composite scales ofCareer Development Attitude and CareerDevelopment Knowledge were examined in relationto age, gender and whether the students hadengaged in paid work experience. Levels ofcareer maturity increased with age, and ingeneral, females at all age levels reportedhigher levels of maturity than males. Studentswith paid work experience reported higherlevels of Career Development Attitude thanthose with no paid work experience. CareerDevelopment Knowledge was not associated withpaid work experience. Gender differences alsooccurred, with females with paid workexperience generally reporting higher levels ofcareer maturity than males with paid workexperience. Results are discussed in adevelopmental context.  相似文献   

Theoretical and Practical Perspectives for the Future of Educational and Vocational Guidance in Australia     

Patton  Wendy  McMahon  Mary 《International Journal for Educational and Vocational Guidance》2002,2(1):39-49

This article highlights therelationship between social change andeducational and vocational guidance provision,and emphasises the theoretical and practicalimperative to renew and refocus educational andvocational (career) guidance services. Afterdescribing the major influences on a changingeducational and vocational guidance nature andprovision, it describes a number of specificdevelopments in Australia.  相似文献   

Signature pedagogies in support of teachers’ professional learning     

Melissa Parker  Kevin Patton  Mary O'Sullivan 《Irish Educational Studies》2016,35(2):137-153

Signature pedagogies [Shulman, L. 2005 Shulman, L. 2005. “Signature Pedagogies in the Professions.” Daedalus 134 (3): 52–59. doi: 10.1162/0011526054622015[Crossref], [Web of Science ®] , [Google Scholar]. “Signature pedagogies in the professions.” Daedalus 134 (3): 52–59.] are a focus of teacher educators seeking to improve teaching and teacher education. The purpose of this paper is to present a preliminary common language of signature pedagogies for teacher professional development (PD). In all, 24 papers from the study of physical education PD projects with clearly articulated pedagogical objectives and documentation on achieving those objectives were included in the analysis. In total 479 teachers and 48 facilitators across the US and Europe were interviewed and/or surveyed. Three discrete PD signature pedagogies holding potential to enhance teacher growth and learning within the context of PD were identified: critical dialogue (process of acquiring knowledge through communicative interactions), public sharing of work (testing out practices in classrooms and share ideas with larger audiences), and communities of learners (collective learning around a shared concern or a passion). It is our hope in providing the beginnings of a common vocabulary for pedagogies of teacher professional learning we have encouraged additional steps toward developing signature pedagogies for learning across different PD settings and content areas.  相似文献   

Relations Between Dialect Variation, Grammar, and Early Spelling Skills     

Nicole Patton Terry 《Reading and writing》2006,19(9):907-931

Relationships among African American English (AAE), linguistic knowledge, and spelling skills were examined in a sample of 92 children in grades one through three whose speech varied in the frequency of morphosyntactic AAE features. Children were separated into groups of high (AAE speakers) and low (standard American English, SAE, speakers) use of AAE features in speech, and asked to produce, recognize, and spell four inflected grammatical morphemes because variable omission of these endings in speech is a morphosyntactic characteristic of AAE. The groups differed in their spelling and elicited spoken production of inflections, but not recognition of these forms. AAE speakers omitted the inflections more often at each grade. Density of morphosyntactic AAE features in speech was related directly to spelling inflections, but this effect was mediated by children’s understanding of standard grammatical forms.  相似文献