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71.
There is accumulating evidence that genetic influences on achievement are more pronounced among children living in higher socioeconomic status homes, and that these gene-by-environment interactions occur prior to children's entry into formal schooling. We hypothesized that one pathway through which socioeconomic status promotes genetic influences on early achievement is by facilitating the processes by which children select, evoke, and attend to learning experiences that are consistent with genetically influenced individual differences in their motivation to learn. We examined this hypothesis in a nationally representative sample of approximately 650 pairs of four-year old identical and fraternal twins who were administered a measure of math achievement, and rated by their parents on a broad set of items assessing learning motivation. Results indicated a genetic link between learning motivation and math achievement that varied positively with family socioeconomic status: Genetic differences in learning motivation contributed to math achievement more strongly in more advantaged homes. Once this effect of learning motivation was controlled for, gene-by-socioeconomic status interaction on math achievement was reduced from previously significant levels, to nonsignificant levels. 相似文献
72.
The temporal-difference (TD) algorithm from reinforcement learning provides a simple method for incrementally learning predictions of upcoming events. Applied to classical conditioning, TD models suppose that animals learn a real-time prediction of the unconditioned stimulus (US) on the basis of all available conditioned stimuli (CSs). In the TD model, similar to other error-correction models, learning is driven by prediction errors-the difference between the change in US prediction and the actual US. With the TD model, however, learning occurs continuously from moment to moment and is not artificially constrained to occur in trials. Accordingly, a key feature of any TD model is the assumption about the representation of a CS on a moment-to-moment basis. Here, we evaluate the performance of the TD model with a heretofore unexplored range of classical conditioning tasks. To do so, we consider three stimulus representations that vary in their degree of temporal generalization and evaluate how the representation influences the performance of the TD model on these conditioning tasks. 相似文献
73.
To assess the flexibility of reasoning about gender, children ages 4, 6, and 8 years (N = 72) were interviewed about gender norms when different domains were highlighted. The majority of participants at all ages judged a reversal of gender norms in a different cultural context to be acceptable. They also judged gender norms as a matter of personal choice and they negatively evaluated a rule enforcing gender norms in schools. Older children were more likely to show flexibility than younger children. Justifications obtained from 6- and 8-year-olds showed that they considered adherence to gender norms a matter of personal choice and they viewed the rule enforcing gender norms as unfair. 相似文献
74.
Dely L. Elliot Matthew Atencio Theresa Campbell Mike Jess 《Sport, Education and Society》2013,18(6):749-766
Morgan and Hansen suggest that further research is needed to explore how non-specialist primary teachers approach and teach physical education (PE) based on their personal school PE backgrounds, teacher education experiences and ongoing professional development. This paper adopts Lawson's socialisation model, a theoretical framework subsequently used by many other researchers, to explore how primary teachers' experiences in various contexts ‘shape [their] knowledge and beliefs about the purpose of physical education, its content and teaching approaches’. Examining teachers' beliefs and attitudes towards PE is arguably important as it highlights how they approach the profession and enact particular teaching practices. We examine the views of 327 non-specialist primary teachers who participated in a postgraduate certificate in primary PE run by the Universities of Glasgow and Edinburgh. This article reports findings from the baseline data of our longitudinal research—arguably crucial in ascertaining teachers' starting point and useful in monitoring the programme's impact. Our findings suggest the prevalence of negative PE experience during primary and secondary years, which we considered part of Lawson's ‘acculturation’ phase. Experiences during initial teacher education (ITE) or ‘professional socialisation’ showed that teachers were only given a basic starting point, which was inadequate for teaching PE effectively. The initial teaching experience or ‘organisational socialisation’ stage also presented major challenges for teachers who endeavoured to apply knowledge and skills acquired during ‘professional socialisation’. We suggest that how teachers' conceptions about PE are formulated and the accounts of challenges they encountered upon school entry are vital for the design and delivery of effective ITE and PE-CPD. Additionally, these findings underpin the need for more critical and reflective learning experiences at all levels of PE. 相似文献
75.
Neil Edward Bezodis Grant Trewartha Aki Ilkka Tapio Salo 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(2):232-245
This study determined the effects of simulated technique manipulations on early acceleration performance. A planar seven-segment angle-driven model was developed and quantitatively evaluated based on the agreement of its output to empirical data from an international-level male sprinter (100 m personal best = 10.28 s). The model was then applied to independently assess the effects of manipulating touchdown distance (horizontal distance between the foot and centre of mass) and range of ankle joint dorsiflexion during early stance on horizontal external power production during stance. The model matched the empirical data with a mean difference of 5.2%. When the foot was placed progressively further forward at touchdown, horizontal power production continually reduced. When the foot was placed further back, power production initially increased (a peak increase of 0.7% occurred at 0.02 m further back) but decreased as the foot continued to touchdown further back. When the range of dorsiflexion during early stance was reduced, exponential increases in performance were observed. Increasing negative touchdown distance directs the ground reaction force more horizontally; however, a limit to the associated performance benefit exists. Reducing dorsiflexion, which required achievable increases in the peak ankle plantar flexor moment, appears potentially beneficial for improving early acceleration performance. 相似文献
76.
Warren Christensen James K. Johnson Grace R. Van Ness Elliot Mylott Justin C. Dunlap Elizabeth A. Anderson Ralf Widenhorn 《CBE life sciences education》2013,12(2):250-261
Undergraduate educational settings often struggle to provide students with authentic biologically or medically relevant situations and problems that simultaneously improve their understanding of physics. Through exercises and laboratory activities developed in an elective Physics in Biomedicine course for upper-level biology or pre–health majors at Portland State University, we aim to teach fundamental physical concepts, such as light absorption and emission and atomic energy levels, through analysis of biological systems and medical devices. The activities address the properties of electromagnetic waves as they relate to the interaction with biological tissue and make links between physics and biomedical applications such as microscopy or laser eye surgery. We report on the effect that engaging students in tasks with actual medical equipment has had on their conceptual understanding of light and spectroscopy. These initial assessments indicate that students’ understanding improves in some areas as a result of taking the course, but gains are not uniform and are relatively low for other topics. We also find a promising “nonshift” in student attitudes toward learning science as a result of taking the course. A long-term goal of this work is to develop these materials to the extent that they can eventually be imported into an introductory curriculum for life sciences majors. 相似文献
77.
Tamar Kennet-Cohen Elliot Turvall Carmel Oren 《Assessment in Education: Principles, Policy & Practice》2014,21(2):193-204
This study examined selection bias in Israeli university admissions with respect to test language and gender, using three approaches for the detection of such bias: Cleary’s model of differential prediction, boundary conditions for differential prediction and difference between d’s (the Constant Ratio Model). The university admissions process in Israel, like those in many countries, is based on a combination of school-related achievement and a general scholastic aptitude test. The selection process was found to be biased in favour of Arabic speakers and not biased with respect to gender. The three approaches for detecting selection bias were similar in the pattern of the results they produced, but differed, as expected, in the magnitude of the bias they detected. The discussion focuses on the results both with respect to the specific groups studied (first research question) and with respect to the three approaches for detecting selection bias (second research question). 相似文献
78.
Phyllis C. Blumenfeld Elliot Soloway Ronald W. Marx Joseph S. Krajcik Mark Guzdial Annemarie Palincsar 《教育心理学家》2013,48(3-4):369-398
Project-based learning is a comprehensive approach to classroom teaching and learning that is designed to engage students in investigation of authentic problems. In this article, we present an argument for why projects have the potential to help people learn; indicate factors in project design that affect motivation and thought; examine difficulties that students and teachers may encounter with projects; and describe how technology can support students and teachers as they work on projects, so that motivation and thought are sustained. 相似文献
79.
80.
Isom Elliot Dowda Reade Olt Phillip 《International journal for the advancement of counseling》2022,44(1):112-125
International Journal for the Advancement of Counselling - Traditionally, counselor education instruction has taken place in the face-to-face format. However, with the shift toward online learning,... 相似文献