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31.
Medic and colleagues (Medic, Starkes, & Young, 2007) found that relatively younger cohorts of Masters athletes had higher participation rates and achieved higher performances compared with a relatively older cohort. Considering that Medic and colleagues' (2007) study was cross-sectional in nature, the purpose of this investigation was to employ a retrospective longitudinal study design to examine the participation rates of Masters swimmers as a function of an individual's constituent year within any 5-year age category over a period of 6 years. Using archived data from the 2003 to 2009 US Masters Short Course National Championships, swimmers' attendance was followed for a period of six consecutive years. Results indicated that a participation-related relative age effect was observed among swimmers who, over a period of 6 years, competed in either at least one championship (N = 2596; Cochran's Q? = 64.16, r(s) = -0.92, both P < 0.0001) or at least three championships (N = 441; Cochran's Q? = 47.51, r(s) = -0.91, both P < 0.0001). Overall, effect size analyses indicated that the odds of a Masters swimmer participating in the championship during the first constituent year of any 5-year age category was more than two times greater than the odds of that athlete participating during the fifth constituent year. 相似文献
32.
Our study explored the contribution of gender role stress (GRS) and sociocultural appearance demands to symptoms of muscle dysmorphia (MD) in a college sample of 219 women and 154 men. For women, five GRS subscales, sociocultural appearance demands, age, and frequency of aerobic exercise predicted MD symptoms (model R2 = .33; F(8,210) = 12.81, p < . 001); for men, only one GRS subscale, age, and sociocultural appearance demands predicted MD symptoms (model R2 = .40; F(3,150) = 9.52, p < .001). Post hoc analyses revealed that a small number of items explained a substantial portion of the variation, suggesting that MD may be more related to specific perceptions of pressure to attain an attractive body than to global gender role stress. 相似文献
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Ian Bradley 《Higher Education Quarterly》1979,34(1):136-143
35.
Ian Bradley 《Higher Education Quarterly》1981,35(3):267-279
36.
As man rushes to the dawn of the twenty‐first century, his society and our own system of education are engulfed in widespread changes. One of these provocative changes is the new move to the site‐based management concept whereby principals become the chief school officers of their own school site. The school principal, in essence, is to have complete control and responsibility over his/her school — the superintendent does not dictate, but rather, negotiates all school business with his principals. In light of this new movement, these two authors draw a parallel between past and present expectations of building principals and submit a planning model for on‐site managerial administrators to inspect, study and implement in accordance with their own needs. The reader is provided with an array of perspectives with which on‐site administrators must deal if total assumption of school‐site business and school programming becomes a reality in the USA and universally. 相似文献
37.
The temporal discounting literature has demonstrated that the loss in value for delayed outcomes is most accurately modeled using a hyperbolic discounting equation. The hyperbolic-shaped function not only describes the shape of discounting for monetary outcomes, but also for other tangibles, such as alcohol, candy, CDs, erotica, cigarettes, cocaine, books, and DVDs. Furthermore, this hyperbolic shape has important theoretical implications. Despite the broad list of outcomes that are hyperbolically discounted, one class of outcomes has only recently received attention: social interactions. For the present study, we used standard binary-choice discounting procedures to explore the function that most accurately describes the change in value of delayed social interactions. The results from the present study suggest that, for 93 participants, the same equations (exponential, hyperbolic, and hyperboloid) used to describe the discounting of nonsocial commodities also describe the relation between delay and the value of social interaction. Similar to previous findings for nonsocial outcomes, the hyperbolic-shaped models provide a fit to the data superior to that of the exponential model. 相似文献
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Ye Zhou-heng Ning Ke Ander Bradley P. Sun Xue-jun 《Journal of Zhejiang University. Science. B》2020,21(8):593-602
Journal of Zhejiang University-SCIENCE B - Methane is the simplest hydrocarbon, consisting of one carbon atom and four hydrogen atoms. It is abundant in marsh gas, livestock rumination, and... 相似文献
40.
This article is an excerpt from a report issued by Clayton State College and from an article by B. R. Rice and E. W. McElroy, “General Education at Clayton State College” in Outcomes: The Quarterly Journal of the Network for Outcome-Based Schools, 10 (1), Spring 1991. 相似文献