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排序方式: 共有240条查询结果,搜索用时 31 毫秒
71.
Dawson G Ashman SB Panagiotides H Hessl D Self J Yamada E Embry L 《Child development》2003,74(4):1158-1175
Children of depressed mothers are at risk for behavioral and emotional problems. Infants of depressed mothers exhibit behavioral disturbances and atypical frontal brain activity. The mechanisms by which children develop such vulnerabilities are not clear. Three-year-old children of mothers with (N = 65) and without (N = 59) a history of depression were assessed in terms of behavior problems and brain electrical activity. Children of mothers with chronic depression exhibited lower frontal and parietal brain activation compared with children of mothers without depression and those whose depression remitted. Depressed mothers reported higher contextual risk (e.g., marital discord and stress) and their children had more behavior problems. Children's frontal brain activation and contextual risk level mediated the relation between maternal depression and child behavior problems. 相似文献
72.
Phillip Dawson Wendy Sutherland-Smith Mark Ricksen 《Assessment & Evaluation in Higher Education》2020,45(4):473-482
AbstractContract cheating happens when students outsource their assessed work to a third party. One approach that has been suggested for improving contract cheating detection is comparing students’ assignment submissions with their previous work, the rationale being that changes in style may indicate a piece of work has been written by somebody else. This approach is time consuming, but recent advances in machine learning and natural language processing suggest that it may be well suited to computerization. We trialed an early alpha version of Turnitin’s Authorship Investigate tool, which compares students’ submissions against their previous work. Twenty-four experienced markers from five units of study were asked to make decisions about the presence of contract cheating in bundles of 20 student assignments, which included 14 legitimate assignments and six purchased from contract cheating sites. We asked markers to determine if each assignment was contract cheating, then provided them with an Authorship Investigate report and let them change their decision. Marker accuracy at detecting contract cheating increased significantly, from 48% to 59% after using the report, with no significant difference in false positives. These findings suggest that software may be an effective component of institutional strategies to address contract cheating. 相似文献
73.
Janis Dawson 《Children‘s Literature in Education》2003,34(2):111-130
Much critical attention has focused on Alcott's representation of domesticity, and, given that her contribution to the nineteenth-century domestic ideal was the source of her fortune and continuing literary fame, this is hardly surprising. This attention to Alcott's portrayal of domesticity, however, has meant that her representation of working women has received relatively little consideration. Indeed, what is missing from many studies of Alcott's domestic novels is an acknowledgment that Alcott's image of domesticity is underpinned by her experience as a working woman. This article examines the foundations of Alcott's domestic ideal by focusing on the experiences of Alcott's working women in two of her most autobiographical novels. 相似文献
74.
75.
It has been two decades since the first power analysis of a psychological journal and 10 years since the Journal of Research in Science Teaching made its contribution to this debate. One purpose of this article is to investigate what power-related changes, if any, have occurred in science education research over the past decade as a result of the earlier survey. In addition, previous recommendations are expanded and expounded upon within the context of more recent work in this area. The absence of any consistent mode of presenting statistical results, as well as little change with regard to power-related issues are reported. Guidelines for reporting the minimal amount of information demanded for clear and independent evaluation of research results by readers are also proposed. 相似文献
76.
Vaille Dawson 《Research in Science Education》2007,37(1):59-73
The products of modern biotechnology processes such as genetic engineering, DNA testing and cloning will increasingly impact
on society. It is essential that young people have a well-developed scientific understanding of biotechnology and associated
processes so that they are able to contribute to public debate and make informed personal decisions. The aim of this study
was to examine the development of understandings and attitudes about biotechnology processes as students progress through
high school. In a cross-sectional case study, data was obtained from student interviews and written surveys of students aged
12 to 17 years. The results indicate that students' ability to provide a generally accepted definition and examples of biotechnology,
cloning and genetically modified foods was relatively poor amongst 12–13 year old students but improved in older students.
Most students approved of the use of biotechnology processes involving micro-organisms, plants and humans and disapproved
of the use of animals. Overall, 12–13 year old students' attitudes were less favourable than older students regardless of
the context. An awareness of the development and range of students' understandings and attitudes may lead to a more appropriate
use of biotechnology curriculum materials and thus improved biotechnology education in schools. 相似文献
77.
这年头,似乎所有东西都要重启一遍,《简·爱》也不例外。夏洛蒂·勃朗特这部写于1847年的英文经典小说已经被一次又一次地改编。最近的一次电影改编出自佛朗哥·泽菲雷利之手。在1996年的版本中,我们看到了深情款款、一头乌发的安娜·帕奎因出 相似文献
78.
Career development is crucial to the success of individuals, organizations and industries. As such, in many professions there are prescribed career development processes underpinned by legal and institutional policies that drive managerial practice. Although there has been sustained interest in understanding career development for athletes and building managerial strategies to assist in the process, there is little empirical knowledge about career development of coaches, and how management may assist in the process. The aim of this study is to explore the way in which sport policy discourse and agendas have impacted coach career development. This study demonstrates that coaches’ careers are not part of the policy discourse despite their important role in athlete performance, career development and sport organization development and success. Coaches are the key performance managers in sport and yet they are ignored by sport policy makers and managers when considering the development of the Australian sport workforce. 相似文献
79.
Towards a Conceptual Profile: Rethinking Conceptual Mediation in the Light of Recent Cognitive and Neuroscientific Findings 总被引:1,自引:0,他引:1
Chris Dawson 《Research in Science Education》2014,44(3):389-414
One important focus for science education researchers over many years has been the attempts to replace students' commonsense and non-scientific explanations of various phenomena by scientific explanations. The approach we adopted almost three decades ago was conceptual mediation, and this was shown to have a considerable level of success with both conceptual and attitudinal change. However, since that time, advances have been made in the application of both cognitive science and neuroscience to science learning. In particular, evidence has accumulated that, rather than the replacement of the commonsense view, the reality is that learners develop a conceptual profile which includes both the commonsense and the scientific. If this is the case, instead of focussing on conceptual replacement, science educators need to aim more actively at strengthening the learner's executive processes which select contextually appropriate responses and inhibit inappropriate ones. In this paper, the initial development, theoretical basis and the practical applications of conceptual mediation are introduced, following which, these are re-examined in the light of more recent findings. Within this discussion, several potential links to recent cognitive and neuroscientific research are drawn, and these raise issues for further research into the most appropriate teaching approaches for tackling existing non-scientific conceptions. 相似文献
80.
Leah P. Macfadyen Shane Dawson Stewart Prest Dragan Gašević 《Assessment & Evaluation in Higher Education》2016,41(6):821-839
Student evaluation of teaching (SET) is now common practice across higher education, with the results used for both course improvement and quality assurance purposes. While much research has examined the validity of SETs for measuring teaching quality, few studies have investigated the factors that influence student participation in the SET process. This study aimed to address this deficit through the analysis of an SET respondent pool at a large Canadian research-intensive university. The findings were largely consistent with available research (showing influence of student gender, age, specialisation area and final grade on SET completion). However, the study also identified additional influential course-specific factors such as term of study, course year level and course type as statistically significant. Collectively, such findings point to substantively significant patterns of bias in the characteristics of the respondent pool. Further research is needed to specify and quantify the impact (if any) on SET scores. We conclude, however, by recommending that such bias does not invalidate SET implementation, but instead should be embraced and reported within standard institutional practice, allowing better understanding of feedback received, and driving future efforts at recruiting student respondents. 相似文献