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81.
This study examined the underlying structure of the Nonverbal Literacy Assessment (NVLA), an instrument designed to measure emergent literacy for K–fourth‐grade students with severe developmental disabilities. The NVLA was conceptualized as having six constructs that reflected emergent literacy skills: (a) phonemic awareness, (b) phonics, (c) comprehension, (d) vocabulary, (e) listening comprehension, and (f) text awareness. Confirmatory factor analysis using data from 207 student administrations was used to examine the six‐factor model and two alternative models. Results suggested that all three models fit the data, but the high corrections coefficients among the constructs suggested that a one‐factor model of emergent literacy was the best‐fitting model. Implications and limitations are discussed. © 2010 Wiley Periodicals, Inc.  相似文献   
82.
Does a national research-focused organization need a technically competent leader? This study provides preliminary answers to that question using a natural experiment underway at the Department of Energy (DOE): a leader with significant high-level management experience superior to that of his predecessors, but no relevant technical experience was appointed to run the vast scientific research operation. The following hypothesis is proposed: A major risk of allowing technically-unqualified leadership is that an amateur can be more easily manipulated by special interests against the best interests of the nation. The hypothesis is tested by technically analyzing three case studies on proposals from the Secretary of Energy. The results show 1) requests for budget cuts undermining DOE's mission, 2) requests for redundant studies wasting DOE resources, and 3) counter-productive recommendations derived from a misrepresentation of the studies' results, which indicate technical competence is important for DOE leadership. These preliminary results indicate technical competency is important for leaders running organizations that oversee research. Finally, a potential policy safe guard to the risks of extreme technical incompetence is provided, which can be applied to either independent- or politically-appointed bureaucrats.  相似文献   
83.
The implications of teen sexting for healthy development continue to concern parents, academics, and the general public. Using a probability sample of high school students (= 1,208) aged 12–18, the prevalence of sexting, associations with sexting, and associations between sexing and sexual activity were assessed. Seventeen percent both sent and received sexts, and 24% only received sexts. Sending and receiving sexts were positively associated with each other and both behaviors were associated with having peers who sext. Lifetime reports of sexual intercourse, anal sex, oral sex, and recent unprotected sex were positively associated with reports of texting 300 or more times per day, only receiving sexts, and both sending and receiving sexts.  相似文献   
84.
Practicums, internships and field experiences are essential components in many fields. These varied experiences embed both students and their mentors in immersive experiences. Such immersive experiences are essential for STEM students preparing for future jobs, yet little is known about how these research-intensive and immersive experiences impact the practice of teaching in the natural sciences. In order to evaluate the impact, opportunities and challenges associated with such experiences, our team collected and analysed end-of-semester reflections from five students and their faculty mentor. Thematic analysis related to inferences and implications about the impacts of the experience showed a need to formalize and further develop an understanding of both students’ self-identity and the cultural attitudes of the students and the mentor.  相似文献   
85.
The relationship between students and their academic institution is based on exchange. However, we have limited knowledge regarding how many exchanges students perceive, who (or what) the perceived exchange partners are, and what the perceived terms of those exchanges contain. To address this gap, we utilized a mixed-method approach to explore and describe the psychological contracts of two sets of undergraduate university students: newly entering freshman, and experienced university students. Results clearly demonstrated that students perceive numerous psychological contracts relevant to their education with a variety of partners both inside and at the boundaries of the institution. Results also demonstrated that these contracts are qualitatively and quantitatively distinct. The overarching implication of these findings is that students navigate a web of diverse exchange partners, and it would be a mistake for educators and researchers to focus exclusively on one or few relationships presupposed to be most important.  相似文献   
86.
A substantial amount of professional development and implementation has moved towards teachers and teacher leaders in recent years. Previous works have examined how teachers, teacher leaders, or administrators perceive teacher leadership in school reforms, but few have advanced all three perspectives simultaneously. Drawing upon over 200 interviews, we examine how leadership is distributed and the tensions and dynamics arising among these three groups in a teacher-led school reform. Two main themes emerged from our analysis: minimizing conflicts with teachers was important to teacher leaders, and the distribution of leadership between administrators and teacher leaders changed the status and normative roles of teacher leaders.  相似文献   
87.
ABSTRACT

The choice of marathon racing shoes can greatly affect performance. The purpose of this study is to metabolically and mechanically compare the consumer version of the Nike Vaporfly 4% shoe to two other popular marathon shoes, and determine differences in running economy. Nineteen subjects performed two 5-minute trials at 4.44m/s wearing the Adidas Adios Boost (AB), Nike Zoom Streak (ZS), and Nike Vaporfly 4% (VP) in random order. Oxygen uptake was recorded during minutes 3–5 and averaged across both shoe trials. On a second day, subjects wore reflective markers, and performed a 3-minute trial in each shoe. Motion and force data were collected over the final 30 seconds of each trial. VP oxygen uptake was 2.8% and 1.9% lower than the AB and ZS. Stride length, plantar flexion velocity, and center of mass vertical oscillation were significantly different in the VP. The percent benefit of the VP over AB shoe was predicted by subject ground time. These results indicate that use of the VP shoe results in improved running economy, partially due to differences in running mechanics. Subject variation in running economy improvement is only partially explained by variation in ground time.  相似文献   
88.
ABSTRACT

Research has shown that athletes’ attitudes towards the use of banned performance-enhancing substances are reliable predictors of their intentions to use these substances, which in turn can be relevant predictors of their actual doping behaviours. Despite the important role played by attitudes and intentions in doping, research analysing how to change those attitudes and intentions is relatively scarce. The present study examined how individual differences in Need for Cognition (NC, Cacioppo & Petty, 1982) influenced doping-related attitude change and subsequent behavioural intentions. Participants were randomly assigned to read a persuasive message either against or in favour of legalising the use of several banned substances, including anabolic androgenic steroids (AAS) and Erythropoietin (EPO). In addition, participants completed the NC scale, and finally reported their attitudes and behavioural intentions regarding the legalisation proposal. As hypothesised, results showed that participants who received an anti-legalisation message had significantly more unfavourable attitudes towards the proposal than participants who received a pro-legalisation message, regardless of NC. However, as predicted, NC moderated the relationship between individuals’ attitudes and their intentions. That is, high-NC participants showed greater attitude-intention correspondence than low-NC participants.  相似文献   
89.
This article seeks to synthesize and apply White racial identity theory and concomitant research to the interaction between athletic and racial identity, specifically as it relates to the experiential variations of how race impacts White athletes within the college sport environment. White dialectics, or the tensions that White Americans experience as dominant social group members, serve as the guiding theoretical framework and provide a theoretical lens through which the experience of White college athletes is examined at each distinct dialectic. Through this article, the application of White dialectics offers a theoretical foundation for developing a better understanding of how White college athletes not only make sense of their racial identity, but also understand their racialized experiences within intercollegiate athletics.  相似文献   
90.
This article deals with the work of polytechnic tutors on adult foundation programmes and describes how their work has been affected by the current neoliberal climate in the education sector. Inclusive neoliberalism is characterised by heightened regulation, reduced support for the public sector and a greater requirement for individual responsibility. The push to improve skills to meet labour demand is promoted as addressing social needs. Policies devised to promote these neoliberal values have led to numerous and far-reaching changes in adult education. In this study 73 foundation skills educators drawn from 8 institutions were interviewed to gain their insights into the effects of these policies. The article discusses three types of detrimental effects: the growing distrust between teaching staff and management; unsettling changes to institutional policy and its effects on staffing issues; and threats to the professionalism of teaching staff, the delivery of foundation studies, and the students themselves. Finally, the article suggests alternative possibilities for addressing these issues.  相似文献   
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