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排序方式: 共有103条查询结果,搜索用时 31 毫秒
61.
Conor V. Dolan Frans J. Oort Reinoud D. Stoel Jelte M. Wicherts 《Structural equation modeling》2013,20(2):295-314
We propose a method to investigate measurement invariance in the multigroup exploratory factor model, subject to target rotation. We consider both oblique and orthogonal target rotation. This method has clear advantages over other approaches, such as the use of congruence measures. We demonstrate that the model can be implemented readily in the freely available Mx program. We present the results of 2 illustrative analyses, one based on artificial data, and the other on real data relating to personality in male and female psychology students. 相似文献
62.
Giles Warrington Eimear Dolan Adrian McGoldrick Johnson McEvoy Caroline MacManus Michael Griffin 《Journal of sports sciences》2013,31(6):543-550
Abstract The aim of this study was to evaluate the impact of weight restrictions on physiological function and bone health in a group of horse racing jockeys. Twenty-seven elite male jockeys participated in this study (17 flat jockeys; 10 national hunt jockeys). Participants completed a range of measurements including anthropometry, hydration analysis, bone mineral density assessment, and musculoskeletal screening. Fifty-nine percent of flat and 40% of national hunt jockeys showed osteopenia in one or more of the total body, hip or spine scans. Mean urine-specific gravity (Usg) values revealed moderate dehydration on a non-race day (Usg = 1.022 ± 0.005 and 1.021 ± 0.007 for flat and national hunt jockeys respectively). Analysis of a number of flat jockeys (n = 11) revealed marked dehydration on an official race day (Usg = 1.028 ± 0.005). Sixty-four percent of participants reported a current injury at the time of assessment. Our results reveal some worrying trends within this population. Further research is required to examine the effects of current weight control practices typically used by jockeys on both physiological and cognitive function as well as health and performance. 相似文献
63.
64.
Involvement in research has become a fixture in undergraduate science education across the United States. Graduate and postdoctoral
students are often called upon to mentor undergraduates at research universities, yet mentoring relationships in undergraduate—graduate/postdoctoral
student dyads and undergraduate—graduate/postdoctoral student—faculty triads have been largely unexamined. Here, we present
findings of an exploratory case study framed by relational theory that identifies the motives, gains, and challenges reported
by graduate/postdoctoral students who mentored undergraduates in research. Graduate/postdoctoral mentors experienced a wide
range of gains, including improved qualifications and career preparation, cognitive and socioemotional growth, improved teaching
and communication skills, and greater enjoyment of their own apprenticeship experience. Notably, graduate/postdoctoral mentors
reported twice as many gains as challenges, neither of which were limited by their motives for mentoring. Indeed, their motives
were fairly narrow and immediate, focusing on how mentoring would serve as a means to an end, while the gains and challenges
they reported indicated a longer-term vision of how mentoring influenced their personal, cognitive, and professional growth.
We propose that understanding the impact of mentoring undergraduates on the education and training of graduate/postdoctoral
students may uncover new ideas about the benefits reaped through undergraduate research experiences. 相似文献
65.
66.
In recent years, Save the Children, a non-governmental organization, prioritized education for children affected by conflict
through its Rewrite the Future Campaign. By significantly scaling up the resources allocated to programmes in conflict-affected
countries, the organization has grown its education programmes in these contexts. Thus it has enabled 1.3 million more children
to have access to education and improved the quality of education for more than 10 million. The campaign also had an international
impact by analysing and advocating for increases in aid flows to conflict-affected countries. This has made the international
community more aware of the need for access to education for children affected by conflict and more willing to ensure it.
The article highlights the achievements of Save the Children UK, and the challenges it faces, by looking at funding volumes
and sources of funding for country programme activities, along with its international influence on the global funding for
countries affected by conflict. 相似文献
67.
Khaled M. Gharaibeh Hazem Kaylani Noel Murphy Conor Brennan Awni Itradat Mohammed Al-Bataineh 《European Journal of Engineering Education》2015,40(3):267-284
This paper presents a curriculum design approach for a Masters Programme in Telecommunications Management based on demand data obtained from surveying the needs of potential students of the proposed programme. Through online surveys disseminated at telecom companies in Jordan, it was possible to measure the demand for such a programme and to determine the required programme contents and specifications. The curriculum design is based on definition of programme outcomes and on using a house of quality approach (HOQ) to determine the list of courses required in the programme. Surveyed competencies are mapped to a long list of proposed courses in a HOQ in order to determine the importance of each of these courses. A final list of core and elective courses is then developed considering the contribution to programme outcomes and the academic standards. 相似文献
68.
Conor Heffernan 《Sport in History》2018,38(1):132-134
69.
Jelte M. Wicherts Conor V. Dolan Jerry S. Carlson Han L.J. van der Maas 《Learning and individual differences》2010,20(3):135-151
This paper presents a systematic review of published data on the performance of sub-Saharan Africans on Raven's Progressive Matrices. The specific goals were to estimate the average level of performance, to study the Flynn Effect in African samples, and to examine the psychometric meaning of Raven's test scores as measures of general intelligence. Convergent validity of the Raven's tests is found to be relatively poor, although reliability and predictive validity are comparable to western samples. Factor analyses indicate that the Raven's tests are relatively weak indicators of general intelligence among Africans, and often measure additional factors, besides general intelligence. The degree to which Raven's scores of Africans reflect levels of general intelligence is unknown. Average IQ of Africans is approximately 80 when compared to US norms. Raven's scores among African adults have shown secular increases over the years. It is concluded that the Flynn Effect has yet to take hold in sub-Saharan Africa. 相似文献
70.