A short German Physical-Self-Concept Questionnaire for elementary school children (PSCQ-C): Factorial validity and measurement invariance across gender     

Annette Lohbeck  Maike Tietjens  Andreas Bund 《Journal of sports sciences》2017,35(17):1691-1696

Research on children’s physical self-concept (PSC) is increasingly recognised as an important field of psychology. However, there is a lack of instruments suitable for younger children at elementary school age. In the present study, a short German 21-item Physical Self-Concept-Questionnaire for children (PSCQ-C) was tested measuring seven specific facets of elementary school children’s PSC (strength, endurance, speed, flexibility, coordination, physical appearance, global sport competence). A number of 770 elementary school children aged 8–12 years completed the PSCQ-C. Results showed good psychometric properties and high reliabilities of the seven scales. Confirmatory factor analysis revealed that the presumed 7-factor model fitted the data best compared to a global 1- and 2-factor model. Also, full measurement invariance was strongly established. Correlations among the seven scales were mainly moderate. Gender differences were suggestive of developmental trends that are consistent with prior studies. These results provide support that the PSCQ-C is a confidential instrument with sound psychometric properties measuring seven specific facets of elementary school children’s PSC.  相似文献   

单源三站外辐射源雷达目标探测性能     

周建卫  李道京  胡烜 《中国科学院大学学报》2017,34(4):422-430

论述全向外辐射源雷达空中目标探测系统的主要问题及系统体制损失。针对单源单站（SISO）和单源三站（SITO）两种工作方式,在接收天线阵元数相同的情况下分析探测距离和定位精度。在单源三站条件下推导直角坐标系中的目标速度矢量表达式,并分析速度测量精度。研究结果表明,在一定条件下,单源三站组网方式的空间覆盖范围与单源单站相当,且具有平面定位精度较高,可获得目标速度矢量和技术实现难度小的特点。  相似文献   

Validity and Reliability of Three Self-Report Instruments for Assessing Attainment of Physical Activity Guidelines in University Students     

Joseph J. Murphy  Marie H. Murphy  Ciaran MacDonncha  Niamh Murphy  Alan M. Nevill  Catherine B. Woods 《Measurement in physical education and exercise science》2017,21(3):134-141

The purpose of this study was to compare the validity and reliability of three short physical activity self-report instruments to determine their potential for use with university student populations. The participants (N = 155; 44.5% male; 22.9 ± 5.13 years) wore an accelerometer for 9 consecutive days and completed a single-item measure, the a brief two item measure and the International Physical Activity Questionnaire—Short Form questionnaires on day 1 and 9. Correlations between self-reported and accelerometer derived moderate-to-vigorous physical activity levels were moderate for the International Physical Activity Questionnaire—Short Form, while poor for the single-item measure and the a brief two item measure. The agreement level was high with the International Physical Activity Questionnaire—Short Form (77.4%) and moderate for both the single-item measure (45.2 %) and a brief two item measure (44.5 %). The intraclass correlations between the two administrations were moderate to strong across all measures (0.52–0.70) in 133 participants. The International Physical Activity Questionnaire—Short Form is the most suitable of these three self-report instruments for use with this population due to higher correlations and levels of agreement with accelerometry.  相似文献   

Sport-specific factors predicting player retention in junior cricket     

Scott Talpey  Tom Croucher  Ahmed Bani Mustafa 《European Journal of Sport Science》2017,17(3):264-270

Understanding factors that motivate young athletes to continue participation in sport can help key stakeholders cultivate an environment that fosters long-term participation. This investigation sought to determine the performance and participation factors that influenced continued participation in junior cricket. Administration-level data were collected each annual season across a seven-year period by a community-level junior cricket association in Australia and analysed to identify the performance and participation-based predictors of player retention. All players were males aged <16 years. Players were categorised according to whether they remained in (or departed from) the association at the end of each playing season. A multivariate logistic regression model with a stepwise variable selection was employed to identify significant independent predictors of player retention. The number of innings batted and overs bowled were significant participation-related contributors to junior cricket player retention. Performance factors such as the number of wickets taken and the number of runs scored also significantly influenced player retention. Finally, team age group, the number of previous seasons played and age were also significant factors in player retention. This demonstrates that sufficient opportunity for children to participate in the game and expression of skills competence are key factors for retention in cricket.  相似文献   

Somewhere in the Middle: The Measurement of Third Culture     

《Journal of Intercultural Communication Research》2013,42(3):253-264

This study explores the concept of “third culture,” which has not been tested by quantified measures since it was introduced. This study develops the 10-item measurement of third culture based on three dimensions—equality, commonality, and transcendence. Two hundred and fifteen international married individuals from 42 countries participated in a self-administered email survey. The findings indicated that the new scale is reliable and functions as a single dimension instead of as three subdimensions. Suggestions for future study as well as several implications on theory and methodology are discussed, drawing on the experience of this study.  相似文献   

国内邮轮旅游体验质量测量及其提升研究——以广西北海——越南下龙湾海上邮轮旅游航线为例     

伍先福  陈攀 《承德职业学院学报》2011,16(3)

打造高品质的独特旅游体验是发展邮轮旅游的关键之一。广西北海——越南下龙湾海上邮轮旅游航线是目前我国唯一一条正在运营的跨国海上旅游航线,在对南宁、桂林、北海3个一级客源市场和邮轮乘客进行问卷调查的基础上,文章对该航线游客体验质量进行了测量,并据此总结出国内邮轮旅游体验质量提升的一般性策略。  相似文献   

高新企业对新招高科技人才测评管理的分析     

师帅  范永武 《技术与创新管理》2006,27(2):45-48

高新企业如何对其新招高科技人才进行测评管理,这个问题是高新企业人力资源管理方面的一个重要问题。通过对高新企业和新招高科技人才自身特点的分析以及高新企业对新招高科技人才进行测评管理的因素和过程的分析,建立起高新企业对新招高科技人才测评管理的模型,为高新企业的人力资源管理提供一些有益的建议。  相似文献   

企业技术联盟绩效评价体系的比较和发展趋势分析   总被引：1，自引：0，他引：1       下载免费PDF全文

张坚 《科研管理》2006,27(1):29-34

对于企业技术联盟而言,其绩效的测度一直引起人们的关注,但是不论是在理论上还是实践中都存在着诸多的分歧和争论。大量研究活动表明,企业技术联盟的绩效评价存在一定的复杂性。本文比较和评述了现有的企业技术联盟绩效评价体系,指出了其存在的局限性;并阐述了其发展趋势,包括:投入和产出的无形化;评价指标的非财务化;评价过程的动态化;评价标准的多样化;定量与定性相结合。  相似文献   

开发数字图书馆需考虑的几个问题   总被引：7，自引：0，他引：7       下载免费PDF全文

刘友华 《中国图书馆学报》2005,31(4)

数字图书馆开发者须熟悉系统内容和用户需求;要通过维护系统品质和易访问性来保证系统的持久可用;使用导航模块等工具技术,确保大多数用户能简易省时地使用系统;保证系统的开放性是为了接纳潜在的用户群体,并使系统容易适应变化的运行环境和技术更新。参考文献15。  相似文献   

大众健美操对女青年体形的影响   总被引：3，自引：1，他引：2  

罗力  唐照华 《四川体育科学》1999,(2):48-49

大众健美操训练对青年女性体型具有一定的影响。测试研究结果表明,通过３０名青年女性经过三个月的大众健美操的练习后,体重、皮脂厚度、围度都有不同程度的增长和减少,达到健身健美的目的。  相似文献