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81.
选题是计算机化自适应测验(CAT)测试过程的关键环节,选题策略的目标是要达到较高的测量精度,同时也实现试题曝光率控制及其他测验目标的实现.本文根据选题策略的基本原理和衍生发展,将众多CAT选题策略分为五大选题策略系列:Fisher函数系列、K-LI函数系列、α分层系列、贝叶斯系列、b匹配系列;并根据测验目标(测验精度、试题曝光率控制、内容平衡、多条件约束)对这些选题策略进行了细分,并对CAT选题策略的选择思路进行归纳.  相似文献   
82.
在心理学领域,传统的多指标潜变量的测量模型大都采用反映性建构,各指标反映了潜在构念,构念是各指标的原因.但实际上有些构念应该采用形成性建构,各指标是原因,形成了潜在构念.建构方式的选择不仅要从理论来考虑,还要通过数据特征来决定.研究以公共服务动机(PSM)构念为例,通过公益投资游戏取得投资绩效和满意度效标,验证了先前研究提出的“一阶反映二阶形成”建构模式,并进一步检验了层级性建构方式的优势,有助于PSM理论框架与实证测量的统一.  相似文献   
83.
单纯性肾囊肿是临床常见的肾脏疾病之一,临床常采用去顶减压术治疗,但外科治疗的适应证目前尚不统一。除症状性肾囊肿及由囊肿引起尿路梗阻外,对于高血压病合并肾囊肿者,如囊肿直径大于5cm,考虑囊肿有可能对高血压产生影响,因此,有必要采取外科治疗措施;但如果不合并高血压,是否一定需要治疗有待进一步探讨。肾囊肿对肾功能影响目前尚无定论,对于小于60岁的肾囊肿患者其肾功能下降可能与肾脏原发病变有关,应积极查找病因并密切随访。对于肾囊肿Bosniak分型为Ⅰ、Ⅱ、ⅡF型的患者,可以不需要手术治疗,密切随访;对于Ⅲ、Ⅳ型患者,应进行外科手术治疗。  相似文献   
84.
‘Internalism’ is used in metaethics for a cluster of claims which bear a family resemblance. They tend to link, in some distinctive way—typically modal, mereological, or causal—different parts of the normative realm, or the normative and the psychological. The thesis of this paper is that much metaethical mischief has resulted from philosophers’ neglect of the distinction between two different features of such claims. The first is the modality of the entire claim. The second is the relation between the items specified in the claim. In part one I explain this distinction and the problems neglecting it may cause. In part two I show that it has been neglected, and has caused those problems, at least with respect to one version of internalism. That is judgment internalism, which claims that moral beliefs are necessarily related to pro- or con-attitudes; e.g., that if you believe you ought to x you must have some motivation to x. The considerations standardly adduced in favor of judgment internalism support only a version which lacks the metaethical implications typically attributed to it, at least so far as anyone has shown. Proponents and opponents of judgment internalism fail to realize this because of their neglect of the modality/relation distinction. I illustrate by considering discussions of judgment internalism by Russ Shafer-Landau, Simon Blackburn, James Dreier, David Brink, and others.
Jon TresanEmail:
  相似文献   
85.
The workings of the transcendent function are explored through the development of a model of psychical process which is founded on the symbolism of the mirror. The model consists in a three-dimensional psychical manifold comprising apperceptive, reflective, and subjective axes. A fourth, temporal axis is implicit in the process character of the model. A fifth, affective axis is not discussed. The model is used to enhance understanding of both failed and successful transcendent functioning. Parallels with modes of initiation are developed. The transference role of the therapist is explored.  相似文献   
86.
In contrast with the view that intrinsic and extrinsic motivation are antagonistic, the view proposed in this article is that they are anchors of a continuous variable. According to the theory set out here, intrinsic motivation develops by means of internalization. This gives rise to four types of motivation: external, introjected, identified, and intrinsic. The main purpose of this study was to construct a scale to measure these four types of motivation for academic achievement and then to examine its validity. The Stepping Motivation Scale, created by the author, was administered to 483 junior high school students. Intercorrelations among the four subscales conformed to a simplex structure, and documented a continuum from extrinsic to intrinsic motivation. To clarify the distinction among the four types of motivation, relevant variables such as causal attributions and coping behaviors in failing situations, beliefs in links between extrinsic and intrinsic motivation, and teachers' evaluation of students' motivation were related to motivation types. A difference in motivational types was exhibited in the differential patterns of correlations.  相似文献   
87.
TACE术联合自体CIK细胞治疗原发性肝癌   总被引:1,自引:0,他引:1  
探讨肝动脉栓塞化疗(TACE)联合自体细胞因子诱导的杀伤细胞(CIK)治疗原发性肝癌的临床疗效。比较TACE术+CIK组(治疗组)和TACE组(对照组)患者的免疫功能、临床疗效及副反应。结果表明,TACE术+CIK与TACE术比较安全有效。因此,TACE术联合自体CIK细胞是治疗原发性肝癌的一种有效方法。  相似文献   
88.
从自我决定论看动机访谈法疗效机理   总被引:1,自引:0,他引:1  
动机访谈法是以病人为中心、促使病人自己改变问题行为的咨询技术和方法。该文从自我决定论角度,解释了动机访谈法取得疗效的机理:动机访谈法起到满足病人基本心理需要(胜任感、归属感、自主性),推动病人产生自主动机的作用,促使病人提高适应性行为的质量和稳定性,提高心理健康水平,从而取得心理治疗效果。  相似文献   
89.
后见之明偏差是一种人类认知自我中心。后见之明偏差的研究具有重大的理论价值和应用价值,尤其是其应用价值更不容低估。研究1采用回忆型和假定型研究范式考察听觉领域是否存在后见之明偏差;研究2采用回忆型研究范式,从需要角度考察奖励性动机对去除听觉后见之明偏差的作用。研究发现:听觉领域存在后见之明偏差;两种研究范式的后见之明偏差不存在差异;奖励性动机并不能消除听觉后见之明偏差。  相似文献   
90.
Object functions help young children to organize new artifact categories. However, the scope of their influence is unknown. We explore whether functions highlight property dimensions that are relevant to artifact categories in general. Specifically, using a longitudinal training procedure, we assessed whether experience with functions highlights shape as important for categorization. Seventeen-month-olds were provided experience with novel categories of similarly shaped objects. In Study 1, the function group learned about the objects’ shape-based functions; a control group did not. In Study 2, 17-month-olds were trained on the same categories, but the objects’ shapes and functions were no longer causally related. Only the function group in Study 1 subsequently used shape reliably when categorizing novel objects. These results suggest that function is instrumental in establishing a ‘shape bias’ in early categorization and that it does so via conceptually based processes.  相似文献   
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