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The genetic and environmental origins of individual differences in mathematical self-evaluation over time and its association with later mathematics achievement were investigated in a UK sample of 2138 twin pairs at ages 9 and 12. Self-evaluation indexed how good children think they are at mathematical activities and how much they like those activities. Mathematics achievement was assessed by teachers based on UK National Curriculum standards. At both ages self-evaluation was approximately 40% heritable, with the rest of the variance explained by non-shared environment. The results also suggested moderate reciprocal associations between self-evaluation and mathematics achievement across time, with earlier self-evaluation predicting later performance and earlier performance predicting later self-evaluation. These cross-lagged relationships were genetically rather than environmentally mediated. 相似文献
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The genetic and environmental etiologies of diverse aspects of language ability and disability, including articulation, phonology, grammar, vocabulary, and verbal memory, were investigated in a U.K. sample of 787 pairs of 4.5-year-old same-sex and opposite-sex twins. Moderate genetic influence was found for all aspects of language in the normal range. A similar pattern was found at the low end of the distribution with the exception of two receptive measures. Environmental influence was mainly due to nonshared factors, unique to the individual, with little influence from shared environment for most measures. Genetic and environmental influences on language ability and disability are quantitatively and qualitatively similar for males and females. 相似文献
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ABSTRACT Research on teacher motivation is increasing substantially. Several studies have demonstrated the relationship between the motivation and teaching behaviour of teachers. The objective of this study was to investigate the relationship between the perceived motivation of teachers and their actual teaching behaviour in the context of secondary education. A survey on teacher motivation yielded responses from 315 teachers from 28 schools across 13 provinces in Indonesia. These teachers were observed in their classrooms by trained observers using a validated observation scheme. Results of a multilevel analysis indicate that: (1) perceived controlled motivation does not predict actual teaching behaviour; (2) perceived autonomous motivation is a positive predictor of at least some domains of actual teaching behaviour. Higher levels of perceived autonomous motivation are associated with higher scores on classroom management and clarity of instruction. There is also a slight tendency (p < .10) for autonomous motivation to explain differences in other domains of teaching behaviour, with the exception of activating teaching. This study highlights the importance of autonomous motivation in relation to teaching quality. 相似文献
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ABSTRACT This paper analyzes challenges indigenous Peruvian college students face in completing their studies, based on field research that included interviews with Peruvian higher education leaders, administrators, researchers, and faculty, and a review of published research. Since 2012, the government of Peru has sponsored Beca 18, a comprehensive scholarship designed to attract and support students from underrepresented populations, namely impoverished and largely indigenous communities. While the program has provided opportunities to thousands of students from all provinces, the struggles they have mirror those of other indigenous students around the world, including discrimination, unpreparedness, and attrition. The analysis pinpoints areas in which lessons from international scholarship and success strategies with other indigenous populations may enhance the success of the Beca 18 scholarship program and the experiences of its students. It discusses the critical role higher education institutions play in developing future leaders through future identity formation. 相似文献
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企业竞争情报应用中的专利情报分析 总被引：9，自引：2，他引：7
企业竞争情报是随着市场竞争的激化而产生和发展的.它所描述的是有关竞争环境、竞争对手和竞争策略的信息研究.而专利情报分析是通过对专利说明书、专利公报中大量的、个别的、零碎的专利情报进行加工组合分析,从而产生具有竞争性的企业竞争情报.专利情报分析是获取竞争情报的重要手段,因而探讨企业应用专利情报的有关问题,对引导企业进行科学决策、增强企业竞争实力具有重大的现实意义. 相似文献
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Petrill S Logan J Hart S Vincent P Thompson L Kovas Y Plomin R 《Journal of learning disabilities》2012,45(4):371-381
The authors examined whether math fluency was independent from untimed math and from reading using 314 pairs of school-aged twins drawn from the Western Reserve Reading and Math Projects. Twins were assessed through a 90-min home visit at approximately age 10 and were reassessed in their homes approximately 1 year later. Results suggested that the shared environment and genetics influenced the covariance among math fluency, untimed math measures, and reading measures. However, roughly two thirds of the variance in math fluency was independent from untimed math measures and reading, including reading fluency. The majority of this independent variance was the result of genetic factors that were longitudinally stable across two measurement occasions. These results suggest that math fluency, although related to other math measures, may also be a genetically distinct dimension of mathematics performance. 相似文献
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Kenglin Lai Jing Lin Yulia Nesterova Zhang Donghui 《Frontiers of Education in China》2017,12(3):436-444
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Shmakova Anna Ryzhova Yulia Suhorukhih Alexey 《Education and Information Technologies》2022,27(2):2267-2282
Education and Information Technologies - The aim of the study is to develop an analytical framework to study the effect of Information and Communication Technology (ICT) education on humanistic... 相似文献
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ABSTRACT— Genetics contributes importantly to learning abilities and disabilities—not just to reading, the target of most genetic research, but also to mathematics and other academic areas as well. One of the most important recent findings from quantitative genetic research such as twin studies is that the same set of genes is largely responsible for genetic influence across these domains. We call these "generalist genes" to highlight their pervasive influence. In other words, most genes found to be associated with a particular learning ability or disability (such as reading) will also be associated with other learning abilities and disabilities (such as mathematics). Moreover, some generalist genes for learning abilities and disabilities are even more general in their effect, encompassing other cognitive abilities such as memory and spatial ability. When these generalist genes are identified, they will greatly accelerate research on general mechanisms at all levels of analysis from genes to brain to behavior. 相似文献