An Examination and Validation of an Adapted Youth Experience Scale for University Sport     

Scott Rathwell  Bradley W. Young 《Measurement in physical education and exercise science》2016,20(4):208-219

Limited tools assess positive development through university sport. Such a tool was validated in this investigation using two independent samples of Canadian university athletes. In Study 1, 605 athletes completed 99 survey items drawn from the Youth Experience Scale (YES 2.0), and separate a priori measurement models were evaluated (i.e., 99 items, YES 2.0, YES for Sport [YES-S]). Confirmatory factor analysis (CFA) and exploratory structural equation modeling (ESEM) results indicated issues with model fit. Post-hoc modifications improved fit, resulting in a 46-item, 9-factor model with five positive and four negative dimensions. In Study 2, 511 athletes completed the same items. The resultant model was confirmed using both CFA (comparative fit index [CFI] = .911, standardized root mean square residual [SRMR] = .056, root mean square error of approximation [RMSEA] = .040) and ESEM (CFI = .956, SRMR = .023, RMSEA = .034). The resultant University Sport Experience Survey provides a reliable and factorially valid instrument for measuring development in university sport.  相似文献   

Bifactor Approach to Modeling Multidimensionality of Physical Self-Perception Profile     

ChihMing Chung  Hairong Song  Taehun Lee 《Measurement in physical education and exercise science》2016,20(1):1-15

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半坡氏族的原始农业     

陈正奇 《西安文理学院学报》2001,16(1):50-55

本文从半坡氏族时代的自然环境、生产工具、耕作方法、古粟起源、粮食加工、贮藏等多方面论述了半坡原始农业的生产规模和历史地位.  相似文献   

Mathematical Modeling in the Primary School: Children's Construction of a Consumer Guide     

Lyn D. English 《Educational Studies in Mathematics》2006,63(3):303-323

This paper examines 6th grade children's local conceptual development and mathematization processes as they worked a comprehensive mathematical modeling problem (creating a consumer guide for deciding the best snack chip) over several class periods. The children and their teachers were participating in a 3-year longitudinal teaching experiment in which sequences of mathematical modeling problems were implemented from the 5th grade (10 years of age) though to the 7th grade. In contrast to traditional problem solving, mathematical modeling requires children to generate and develop their own mathematical ideas and processes, and to form systems of relationships that are generalizable and reusable. Reported here is a detailed analysis of the iterative cycles of development of one group of children as they worked the problem, followed by a summary of the mathematization processes displayed by all groups. Children's critical reflections on their models are also reported. The results show how children can independently develop constructs and processes through meaningful problem solving. Children's development included creating systems for operationally defining constructs; selecting, categorizing, and ranking factors; quantifying quantitative and qualitative data; and transforming quantities.  相似文献   

CILT2000: Visualization and Modeling     

Kali  Yael 《Journal of Science Education and Technology》2002,11(3):305-310

CILT2000 helped VisMod evolve from a collection of local and distinct research and development efforts into a solid field of education. Previous intellectual efforts focused around a) modeling and simulation tools, b) visual explanation tools, c) visual data analysis tools, d) exploring student needs in the context of VisMod, and e) exploring instructional frameworks for VisMod. These focus areas have evolved in two main trajectories, representing the evolution of the field, the generalization trend, which seeks to identify general principles and guidelines for designing learning environments, and the equitable application trend, seeking to use knowledge gained in the field to leverage education in general.  相似文献   

反原始主义:大众神话的挽歌     

朱金萍 《连云港师范高等专科学校学报》2002,(4):9-11

原始巫术和万物有灵论构筑了民众对超自然神秘力量敬畏与迷信的神话 ,当怀着民族救亡和思想启蒙重任的知识精英 ,用工业文明的理性与知识开启蒙昧的中国心智时 ,寻根文学中的原始主义文学成了民族自恋的挽歌  相似文献   

互联网上的虚拟漫游   总被引：2，自引：0，他引：2  

张小绵  古元许通 《中山大学学报论丛》2002,22(3):223-228

基于图像的绘制技术能够克服传统的几何方法建模繁琐、计算复杂的缺陷 ,因而是一种高效的实时虚拟场景绘制新方法。介绍基于图像的VR建模原理和JAVA语言的图形方法 ;讨论了互联网上虚拟场景漫游系统的程序设计 ,该系统采用全景图和基于图像的动画建立虚拟环境 ,用户通过浏览器按钮能够实现多种方式的漫游。  相似文献   

哲学给人什么     

马毅  王立山 《大连大学学报》2003,24(3):26-28

哲学作为最高思想智慧,其真实品格与本性是人的精神世界的深层文化底蕴;哲学教化启蒙人用最美好的思想智慧去完善人性,以获得成为人的内在文化要素和精神气质,由此以本真的方式———真诚去规定自身生存与生活:即哲学给人真诚的人格,教人成为人;哲学给人真诚的思考,教人以境界;哲学给人以真诚的信仰,教人以超越。  相似文献   

接受非本原字自动机的方根（T（A））~（1/2）的上界值问题     

龙冬阳 《中山大学学报论丛》1996,(6)

给出了Ｉｔｏ等人所讨论的接受本原字的有限自动机的判定问题、及提出接受非本原字自动机的方根Ｔ（Ａ）的上界值问题的部分解答  相似文献   

Statistical Power of the Multiple Domain Latent Growth Model for Detecting Group Differences     

Kejin Lee  Tiffany A. Whittaker 《Structural equation modeling》2018,25(5):700-714

The latent growth model (LGM) in structural equation modeling (SEM) may be extended to allow for the modeling of associations among multiple latent growth trajectories, resulting in a multiple domain latent growth model (MDLGM). While the MDLGM is conceived as a more powerful multivariate analysis technique, the examination of its methodological performance is very limited. Hence, the present study compared the power of the MDLGM with that of a set of univariate LGMs for detecting group differences in growth rates over time using a Monte Carlo study with a two-group and two-domain design. The results indicated that there were different scenarios where the power rates for the MDLGM were greater than that of the set of LGMs (and vice versa) due to a joint function of the two domains’ intercorrelation size and the group difference effect size.  相似文献