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251.
252.
The combined event is a crucial aspect of the modern pentathlon competition, but little is known about how shooting performance changes through the event. This study aimed to identify (i) how performance-related variables changed within each shooting series and (ii) how performance-related variables changed between each shooting series. Seventeen modern pentathletes completed combined event trials. An optoelectronic shooting system recorded score and pistol movement, and force platforms recorded centre of pressure movement 1 s prior to every shot. Heart rate and blood lactate values were recorded throughout the event. Whilst heart rate and blood lactate significantly increased between series (P < 0.05), there were no accompanying changes in the time period that participants spent aiming at the target, shot score, pistol movement or centre of pressure movement (P > 0.05). Thus, combined event shooting performance following each running phase appears similar to shooting performance following only 20 m of running. This finding has potential implications for the way in which modern pentathletes train for combined event shooting, and highlights the need for modern pentathletes to establish new methods with which to enhance shooting accuracy.  相似文献   
253.
OBJECTIVES: To estimate how many heterosexual and gay/bisexual men self-define abusive childhood sexual experiences (CSEs) to be childhood sexual abuse (CSA) and to assess whether CSA self-definition is associated with risky behavioral and psychiatric outcomes in adulthood. METHODS: In Philadelphia County, 197 (66%) of 298 recruited men participated in a telephone survey. They were screened for CSEs and then asked if they self-defined abusive CSEs to be CSA; they also were asked about risk behavior histories and post-traumatic stress disorder (PTSD) and depression symptoms. RESULTS: Of 43 (22%) participants with abusive CSEs, 35% did not and 65% did self-define abusive CSEs to be CSA ("Non-Definers" and "Definers," respectively). Heterosexual and gay/bisexual subgroups' CSA self-definition rates did not significantly differ. When self-definition subgroups were compared to those without CSEs ("No-CSEs"), Non-Definers had lower perceived parental care (p=.007) and fewer siblings (p=.03), Definers had more Hispanics and fewer African Americans (p=.04), and No-CSEs had fewer gay/bisexual men (p=.002) and fewer reports of physical abuse histories (p=.02) than comparison groups. Non-Definers reported more sex under the influence (p=.001) and a higher mean number of all lifetime sex partners (p=.004) as well as (only) female sex partners (p=.05). More Non-Definers than Definers reported having experienced penetrative sex as part of their CSA (83% vs. 35%, p=.006). Different explanations about self-definition were provided by subgroups. CONCLUSIONS: Many men with abusive CSEs do not self-define these CSEs to be CSA, though not in a way that differs by sexual identity. The process by which men self-define their abusive CSEs to be CSA or not appears to be associated not only with self-explanations that differ by self-definition subgroup, but also with behavioral outcomes that impart risk to Non-Definers.  相似文献   
254.
This exploratory qualitative study examined faculty responses to a collegiality-building process called Dialogues. The process used a series of discussions and activities to guide faculty members toward a common, mutually beneficially goal, while changing patterns of interaction. The responses revealed how faculty members experienced collegiality-building practices, including individual reflection, small group discussions, idea generation and prioritization, and consensus-building. The study examined faculty responses within STEM departments. We conclude with recommendations for encouraging inclusive and participatory departmental norms and behaviors in order to promote a positive departmental climate, which is crucial to achieving equity in all disciplines of the academia.  相似文献   
255.
This study examined the underlying constructs measured by the Differential Ability Scales (DAS; C.D. Elliott, 1990a) as they relate to the Cattell‐Horn‐Carroll (CHC) Theory (K.S. McGrew, 1997) of cognitive abilities. The DAS and Woodcock‐Johnson Tests of Cognitive Abilities (WJ‐III COG; R.W. Woodcock, K.S. McGrew, & N. Mather, 2001) were administered to 131 children in grades 3 through 5 who took part in a concurrent validity study included in the Woodcock‐Johnson Tests of Cognitive Abilities, Third Edition, technical manual (K.S. McGrew & R.W. Woodcock, 2001). Confirmatory factor analyses using maximum likelihood estimation were conducted with the AMOS 5.0 (J.L. Arbuckle, 2001) statistical program to evaluate three models of increasing complexity, to compare how well each fit the data set, and to identify the one that best described the underlying constructs measured by the DAS. Results suggested that the synthesized Three‐Stratum CHC Model provided the most parsimonious representation among the three models tested. © 2007 Wiley Periodicals, Inc. Psychol Schs 44: 119–138, 2007.  相似文献   
256.
While access to higher education has increased for Indigenous Australians, participation and completion rates remain lower than those of non-Indigenous Australians. A sound evidence base is needed to ground equity initiatives if they are to address the specific needs of Indigenous students. This paper presents the results of a scoping review of empirical research focusing on the participation of Indigenous students in higher education. The purpose of the scoping review was to synthesise empirical research on aspirations for, and barriers and enablers to, higher education that were published between 2000 and 2016 (n = 57), and identify areas where further research is needed. Despite a recent increase in research on this topic, relatively little attention has been paid to Indigenous students’ aspirations while they are at school. We argue that future research should take account of school students’ aspirations for higher education, including primary school students; the similitude of barriers and enablers across the student life cycle; differences within Indigenous community and among Indigenous students; and, the insights emerging from Indigenous methodologies and scholarship.  相似文献   
257.
Factorial invariance assessment is central in the development of educational and psychological assessments. Establishing invariance of factor structures is key for building a strong score and inference validity argument and assists in establishing the fairness of score use. Fit indices and guidelines for judging a lack of invariance is an ongoing line of research. In this study, the authors examined the performance of the root mean squared error of approximation equivalence testing approach described by Yuan and Chan in the context of measurement invariance assessment. This investigation was completed through a simulation study in which several factors were varied, including sample size, type of invariance tested, and magnitude and percent of a lack of invariance. The findings generally support the use of equivalence testing for situations in which the indicator variables were normally distributed, particularly for total sample sizes of 200 or more.  相似文献   
258.
Adolescent risky behavior is related to developmental changes in decision‐making processes and their neural correlates. Yet, research investigating how the family environment relates to risk processing in the adolescent brain is limited. In this study, longitudinal data were collected from 167 adolescents (13–15 years, 53% male) who self‐reported household chaos and their parent's monitoring practices, and completed a decision‐making task during functional MRI at Time 1 and Time 2 (1 year apart). Parental knowledge was positively related to insular risk processing only among adolescents in low‐chaos environments at both time points. Results highlight environmental correlates of insular risk processing in the developing brain.  相似文献   
259.
Assimilating new teachers into schools is a critical component of administrative responsibility and sustainability. About 580 000 teachers (17% of all teachers) were newly hired at their school, according to the US Department of Education. Most of these positions were created because of “teacher turnover.” Some of these newly hired teachers filled new teaching positions in the workforce as well—which grew by three percent over the previous two years. As this number rises, there is a concentrated effort by building administrators to provide support and resources for beginning teachers to help eliminate teacher turnover and strengthen staffing at schools. Support for new teachers varies from district to district and even from school to school. Traditional induction programs offer mentoring and coaching methods. More recently, the concept of self-mentoring emerged. The purpose of this paper is to introduce the concept of self-mentoring as a tool for beginning teachers.  相似文献   
260.
This article examines classroom practices that draw upon students' understandings of race and equity as they engage in critical literature inquiry to explore issues of power in our society. Our research team, comprising a fifth-grade classroom teacher, a doctoral candidate, and a university professor, analyzed students' written and digital projects to better understand what new skills, strategies, and meaning-making opportunities emerge when race is centralized in the curriculum. We documented the various ways students were able to voice their thoughts through multimodal learning in an elementary language arts classroom.  相似文献   
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