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251.
本实验研究通过把汉字拆为其有机的组成成分,最少2个最多5个,在各成分顺序排列或随机排列两种条件下呈现给被试,要他们组合出原来汉字的方法对表象操作的容量和策略进行了初步的探讨。实验结果表明表象操作的容量是相当有限的,执行最优加工的容量为2—3个,上限约为4—5个。加工容量随操作复杂程度的高低可略有变化。结果还表明在本实验条件下系统对表象各成分的操作采取的是并行的同时加工,这种并行加工能大大提高表象加工的效率。 相似文献
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Jiři Marek 《Studies in East European Thought》1983,26(2):143-150
Marx extrapolated the relations of production of the factories of his time into his predictions about the development of the working class. These predictions are among the most important theses of Marxism-Leninism relative to the socialist world-revolution which the working class was to carry out. The physics of Marx' era was not very developed. Marx could have no inkling of the future development of physics and of its application to technology. This is why his predictions had to be in simple and direct proportion to the development of the relations of production of the time. Industry developed — thanks in part to the development of physics — in ways other than Marx had suspected. The use of modern physics, leading to cybernetics and automation, gradually changed the workers from forces of production to supervisory engineers. Were one to undertake today an extrapolation like that which Marx carried out, one would have to see as highly probable the disappearance of the very working class that Marx saw as carrying out the world-revolution. 相似文献
254.
每个被试对互补的联合方位的图形适应后均产生单眼特定和双眼特定的McCollough效应。双眼的起始强度大于单眼的起始强度。单眼和双眼的McCollough效应的消退速度基本相同。在自然视觉条件下McCollough效应消退快,在完全黑暗的条件下没有明显的消退。说明导致McCollough效应恢复平衡的主要因素不是自发的过程,而与网膜刺激有关。倾斜知觉后效的消退在上述两种实验条件下没有明显的差别,因此可推测倾斜知觉后效的消退主要是神经疲劳的一个自发的恢复过程。 相似文献
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Prior work suggests that follower and leader risk orientation is positively associated with follower creativity. We suggest that this view is oversimplified and propose that follower creativity can be stimulated when leader and follower have diverging risk orientations. We, therefore, apply a configurational approach to creativity, evaluating varying combinations of leader and follower risk orientation on follower creativity. Across two field studies, we demonstrate that (a) follower creativity increases as leaders’ and followers’ risk orientations become more discrepant (i.e., incongruent); (b) follower creativity is higher when leader–follower dyads are congruent at moderate levels of risk orientation compared to congruence at the extremes (i.e., low and high levels); (c) follower‐experienced intellectual stimulation mediates the relationship between leader–follower risk orientation incongruence and congruence and follower creativity; and (d) that leader authority openness moderates the indirect effect of leader–follower risk orientation incongruence on creativity via follower‐experienced intellectual stimulation. Theoretical and practical implications specific to creativity and leader–follower relationships are discussed. 相似文献
257.
Through a historical analysis of the concept of inertia about its origination, definitions, and interpretations in the marketing context, this article presents the disagreements and debates on consumer inertia. In response, the authors redefine it by proposing clear definitions for two types of consumer inertia (CI1 and CI2). The reconceptualization clarifies the scope of consumer inertia and the role it plays in repeat purchase behavior. The conceptual models indicate the determinant and moderating factors of CI1 and CI2. The sequential development conceptual model of CI2 based on four dimensions (Cognitive Inertia, Affective Inertia, Conative Inertia, Action Inertia) deconstructs its mechanism. As for its relationship with loyalty, while type one inertia (CI1) leads to Spurious Loyalty, type two consumer inertia (CI2) can lead to either Loyalty, Latent Loyalty, Spurious Loyalty or No Loyalty. This study contributes to a better understanding of how consumer inertia works in repeat purchase behavior and provides some implications for future research and marketing practice. 相似文献
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以甘肃省陇南市成县6所幼儿园301名农村幼儿及其母亲为研究对象,采用流调中心抑郁量表(CES-D)、母亲教养方式量表和Achenbach儿童行为量表(CBCL)分别考察母亲抑郁、母亲回应性和幼儿社交退缩的现状及相互关系。主要结果如下:(1)西北农村地区母亲抑郁发生率较高,父亲外出打工和贫困家庭的母亲抑郁发生率更高;(2)母亲抑郁与幼儿社交退缩行为显著正相关,母亲抑郁水平越高,幼儿社交退缩得分越高;(3)母亲敏感性和反应性与幼儿社交退缩显著负相关,母亲敏感性和反应性得分越高,幼儿社交退缩得分越低;(4)母亲反应性在母亲抑郁和幼儿社交退缩之间起部分中介作用。 相似文献
260.
In most item response theory applications, model parameters need to be first calibrated from sample data. Latent variable (LV) scores calculated using estimated parameters are thus subject to sampling error inherited from the calibration stage. In this article, we propose a resampling-based method, namely bootstrap calibration (BC), to reduce the impact of the carryover sampling error on the interval estimates of LV scores. BC modifies the quantile of the plug-in posterior, i.e., the posterior distribution of the LV evaluated at the estimated model parameters, to better match the corresponding quantile of the true posterior, i.e., the posterior distribution evaluated at the true model parameters, over repeated sampling of calibration data. Furthermore, to achieve better coverage of the fixed true LV score, we explore the use of BC in conjunction with Jeffreys’ prior. We investigate the finite-sample performance of BC via Monte Carlo simulations and apply it to two empirical data examples. 相似文献