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511.
PR Sackett NR Kuncel AS Beatty JL Rigdon W Shen TB Kiger 《Psychological science》2012,23(9):1000-1007
This article examines the role of socioeconomic status (SES) in the relationships among college admissions-test scores, secondary school grades, and subsequent academic performance. Scores on the SAT (a test widely used in the admissions process in the United States), secondary school grades, college grades, and SES measures from 143,606 students at 110 colleges and universities were examined, and results of these analyses were compared with results obtained using a 41-school data set including scores from the prior version of the SAT and using University of California data from prior research on the role of SES. In all the data sets, the SAT showed incremental validity over secondary school grades in predicting subsequent academic performance, and this incremental relationship was not substantially affected by controlling for SES. The SES of enrolled students was very similar to that of specific schools' applicant pools, which suggests that the barrier to college for low-SES students in the United States is a lower rate of entering the college admissions process, rather than exclusion on the part of colleges. 相似文献
512.
目的:编制初中生情感能力问卷,检验其信效度。方法:在文献研究的基础上,构建初中生情感能力的理论维度,编写问卷题目。对316名初中生进行预测,形成初步问卷,再对864名初中生进行测量。使用SPSS17.0和Lisrel8.7软件对问卷进行探索性因素分析和验证性因素分析。结果:初中生情感能力结构分为情感识别能力、情感体验能力、情感评价能力、情感管理能力四个维度,由15道题目组成。验证性因素分析的GFI,NNFI,AGFI,CFI,IFI均在0.9以上,模型拟合较好。结论:初中生情感能力问卷具有较好的信度和效度,可以成为评定初中生的情感能力素质的测评工具。 相似文献
513.
Two types of the attentional network, alerting and orienting, help organisms respond to environmental events for survival in the temporal and spatial dimensions, respectively. Here, we applied chromatic flicker beyond the critical fusion frequency to address whether awareness was necessary for activation of the two attentional networks. We found that high-frequency chromatic flicker, despite its failure to reach awareness, produced the alerting and orienting effects, supporting the dissociation between attention and awareness. Furthermore, as the flicker frequency increased, the orienting effect attenuated whereas the alerting effect remained unchanged. According to the systematic decline in temporal frequency sensitivity across the visual hierarchy, this finding suggests that unconscious alerting might be associated with activity in earlier visual areas than unconscious orienting. Since high-frequency flicker has been demonstrated to only activate early visual cortex, we suppose that neural activation in early visual areas might be sufficient to activate the two attentional networks. 相似文献
514.
The limited capacity of visual working memory (VWM) requires the existence of an efficient information selection mechanism.
While it has been shown that under low VWM load, an irrelevant simple feature can be processed, its fate under high load (e.g.,
six objects) remains unclear. We explored this issue by probing the “irrelevant-change distracting effect,” in which the change
of a stored irrelevant feature affects performance. Simple colored shapes were used as stimuli, with color as the target.
Using a whole-probe method (presenting six objects in both the memory and test arrays), in Experiment 1 we found that a change to one of the six shapes led to a significant distracting effect. Using a partial-probe method (presenting
the probe either at the screen center or at a location selected from the memory array), in Experiment 2 we showed the distracting effect again. These results suggest that irrelevant simple features can be stored into VWM, regardless
of memory load. 相似文献
515.
516.
虚拟环境和互联网技术的应用极大地推动了计算机技术的发展,同时也产生了若干人因素问题。其中,虚拟环境中的“沉浸度”、“迷路”以及相关导航方式的设计等尤为突出。众多研究表明,在虚拟环境和WWW(World Wide Web)中,合理地呈现信息、恰当地布置浏览环境以及科学地设计导航方式,使人-计算机界面符合用户的认知加工特点和能力,减少认知负荷和心理压力,这对于最大程度地提高虚拟环境的沉浸度、减少迷路现象具有重要意义。 相似文献
517.
518.
AbstractA general modeling framework of response accuracy and response times is proposed to track skill acquisition and provide additional diagnostic information on the change of latent speed in a learning environment. This framework consists of two types of models: a dynamic response model that captures the response accuracy and the change of discrete latent attribute profile upon factors such as practice, intervention effects, and other latent and observable covariates, and a dynamic response time model that describes the change of the continuous response latency due to change of latent attribute profile. These two types of models are connected through a parameter, describing the change rate of the latent speed through the learning process, and a covariate defined as a function of the latent attribute profile. A Bayesian estimation procedure is developed to calibrate the model parameters and measure the latent variables. The estimation algorithm is evaluated through several simulation studies under various conditions. The proposed models are applied to a real data set collected through a spatial rotation diagnostic assessment paired with learning tools. 相似文献
519.
从最初对西方身体转向的应激反应,到开始关注中国古代哲学的身体维度,再到多角度、宽领域深入开掘中国传统哲学的身体特质,作为中国哲学研究的新视野,中国哲学的身体性研究展现出了非凡的活力.关于这一研究的新进展,海峡两岸"中国哲学研究的身体维度"会议从三个方面,即"身体与伦理"、"体感与体知"、"身体与语文"作了细致的探讨,不仅深化了中国哲学的身体性研究,也推进了海峡两岸学者在这一领域的学术交流,中国哲学的身体性研究已成为建设当代文化的重要资源. 相似文献
520.
神秘主义,从灵学史的角度来考察,是一个世界现象。所以考察俄罗斯神秘主义的流行,就必须放在一个大环境下来思考。俄罗斯神秘主义流行与前苏联的演变有密不可分的关系,与美苏的争霸及世界格局的变迁也息息相关。本文即是从与前苏联的比较研究中,寻找可以借鉴的历史教训。 相似文献