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Many educational and psychological tests are inherently multidimensional, meaning these tests measure two or more dimensions or constructs. The purpose of this module is to illustrate how test practitioners and researchers can apply multidimensional item response theory (MIRT) to understand better what their tests are measuring, how accurately the different composites of ability are being assessed, and how this information can be cycled back into the test development process. Procedures for conducting MIRT analyses–from obtaining evidence that the test is multidimensional, to modeling the test as multidimensional, to illustrating the properties of multidimensional items graphically-are described from both a theoretical and a substantive basis. This module also illustrates these procedures using data from a ninth-grade mathematics achievement test. It concludes with a discussion of future directions in MIRT research. 相似文献
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All traumatic and overuse injuries occurring during an average period of 4 years (2002/09) in a group of 51 currently active road top-level cyclists were retrospectively registered through clinical interviews. Average age was 25.8 years. Average training and competition period was 28.3 ± 2.4 h a week. Only 8 cyclists (15.6%) were completely free from lesions during the period of study. The remaining 43 cyclists suffered a total of 112 lesions; however, 9 out of these were unrelated to their cycling practice. These 103 cycling-related injuries include 50 (48.5%) traumatic and 53 (51.5%) overuse injuries. Twenty-eight fractures were reported, the clavicle being the most frequently affected bone (11 cases). The 68.5% of overuse injuries were located in the lower limbs. Most overuse injuries (89.6%) occurred during the training period. According to the injury abbreviated scale (AIS), severe lesions were only found in 4 cases (8% of traumatic injuries). Overall injury rates were 0.50 per racer/year, 2.02 per studied racer, and 0.007 per 1000 km of training and competition. Active professional top-level cyclists are exposed to a high injury risk. According to the scarce previously published data the current study provides relevant information on the injury occurrence of still active top-level road cycling. 相似文献
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肯尼亚人口中18岁以下的青少年占50%,他们是肯尼亚社会中一股重要而活跃的力量,大力发展青少年教育是促进发展的有效方式。肯尼亚科学中心是一所筹建中的STEM教育机构,旨在为所有青少年提供平等的教育机会,并接受STEM教育方面的启迪。本文介绍了建设和发展肯尼亚科学中心的各种工作方式,期望能够借鉴国际上其他科学中心的经验,以达成独具特色的发展目标。 相似文献
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J. M. Hills G. Robertson R. Walker M. A. Adey I. Nixon 《Teaching in Higher Education》2013,18(2):211-231
This article investigates the gap between employers' requirements of graduates and the skills which graduates are furnished with through degree programmes in the higher education (HE) sector in the UK. A survey of 88 subject review reports prepared by the Quality Assurance Agency (QAA) for environmentally related units in the UK showed little emphasis on employability issues. Surveys of first destination statistics of a cohort of graduates from two biological degrees and from national data showed that a significant proportion of graduates were in non-science-based activities. The non-knowledge-based learning outcomes from one degree were investigated, and showed that employability aspects were partially covered in the programme, but were not always associated with secure assessments. The concept of work-related learning is defined and a conceptual framework for HE practitioners is presented that could be used when designing curricula to better map programme learning outcomes onto graduate employment. 相似文献
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England's Education Action Zones are a flagship New Labour policy geared towards raising standards and reducing social exclusion in areas of educational under-performance. This introduction outlines key features of the policy, considers its broader significance in relation to new models of educational governance and pulls out some of the key issues that arise from the contributions to this special feature. 相似文献
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Analysing sexual experiences through ‘scenes’: a framework for the evaluation of sexuality education
Vera Paiva 《Sex education》2013,13(4):345-358
This paper describes an alternative approach to undertaking and evaluating sexual health promotion, focusing on the notion of sexual scenes and scenarios and how these can provide a vantage point from which to examine sexual experience. The concept of sexual scenes provides a context within which to analyse many of the behavioural and epidemiological factors associated with sexual practice. In principle, such an approach provides a tool for conscientization, action and the invention of novel group and individual repertoires that may result in individual and social mobilization for health and/or sexual and reproductive rights. Scenes can be elicited through individual interviews, group interviews and discussions, or through staged and dramatized performance and students' writing. Analysing sexual scenes offers an entry point for dialogue in sexual health promotion programming. Evaluation of these programmes can be part of the process of changing sexual scenarios. Change is witnessed not only through individual changes but, especially in impoverished communities, through challenges to dominant local sexual scenarios and engagement with structural concerns. 相似文献
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Joy Walker 《Sex education》2013,13(3):239-254
The social and political climate of sex education over the last two decades has dramatically changed, with parents now being encouraged to work in partnership with professionals. This paper seeks to further the argument that involving parents in their child's sex education does matter and can have an impact on their child's future sexual health. It discusses the reality of parents' roles and skills in providing sex education within the family. In particular, the discussion explores myths parents associate with sex education, involving fathers in provision, siblings as peer educators, health professionals' attitudes towards involving parents, and school partnerships. The author calls for professionals to involve parents alongside other sources of sex education in health and educational strategies to address sexual health issues and improve sex education. Otherwise future generations of children will experience a closed cultural attitude towards sexual matters and we will not achieve lower teenage pregnancy rates or view sex education positively. 相似文献