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941.
等级反应模型下项目特征曲线等值法在大型考试中的应用   总被引:2,自引:1,他引:1  
在中国最大的资格考试之一的经济专业资格考试中,为保证不同年度间考试的可比性、进行题库建设和为计算机自适应考试做准备,应用项目反应理论中等级反应模型下的项目特征曲线等值法,采用铆测验等值设计,实现了4个年度考试资料的项目参数和能力参数的等值,并成功地组建了经济专业题库。在此基础上,利用等值技术对不同年份试卷的划界分数进行了比较,为经济考试的合格标准制定、确保考试的公平性提供了实证依据。  相似文献   
942.
943.
We review Li's research and theory of cultural learning models in light of Chirkov's (2019) theory of sociocultural models that draw on previous theories and research across social sciences. We recast Li's models as sociocultural learning models (SCLMs) by incorporating Chirkov's three emphases: (a) the inseparability between the social and the cultural, (b) the public versus individuals’ internalization of SCLMs and their mutual enforcement, and (c) collective intentionality and intersubjectivity as embedded in the enactment of SCLMs. As an initial attempt to document how public SCLMs become internalized, we further examine the role of joint intentionality and intersubjectivity at the person‐to‐person level. We use discourse analysis to look at two mother–child conversations about learning from our current European American and Chinese immigrant research data. We show evidence that both joint intentionality and intersubjectivity are prevalently and deeply present in the process of parental socialization (transmitting SCLMs to their young). We conclude that intentionality and intersubjectivity are indispensable to enable SCLMs to exist and to continue by enabling the public to become internalized. The internalization is then enacted and repeated by members across the culture, who in turn function to uphold and renew SCLMs.  相似文献   
944.
945.
This study analyzes the role of derivational suffixes in visual word recognition, tracking the eye movements of 31 participants in a sentence-reading task in Spanish. Perceptual salience of suffixes was operationalized as the proportion of letters represented by the suffixes with respect to the full words, that is, we relate the number of letters comprising the suffixes to the number of letters in the words in which they appear. The results reveal a significant role in first fixation duration of both word frequency – the more frequent the word, the shorter the fixations, and perceptual salience – the more salient the suffix, the longer the fixations. Moreover, in gaze duration, our results show a main effect of word length – the longer the word, the longer the fixations; word frequency; and significant interactions between word frequency and perceptual salience of suffixes on the one hand – the effect of word frequency is only significant when perceptual salience of suffixes is high, and between word frequency and word length on the other hand – the frequency effect decreases as word length increases. Overall results are interpreted in the light of the dual route models by which full-form and morphological processing interactively cooperate in visual word recognition.  相似文献   
946.
A number of recent models of semantics combine linguistic information, derived from text corpora, and visual information, derived from image collections, demonstrating that the resulting multimodal models are better than either of their unimodal counterparts, in accounting for behavioral data. Empirical work on semantic processing has shown that emotion also plays an important role especially in abstract concepts; however, models integrating emotion along with linguistic and visual information are lacking. Here, we first improve on visual and affective representations, derived from state-of-the-art existing models, by choosing models that best fit available human semantic data and extending the number of concepts they cover. Crucially then, we assess whether adding affective representations (obtained from a neural network model designed to predict emojis from co-occurring text) improves the model's ability to fit semantic similarity/relatedness judgments from a purely linguistic and linguistic–visual model. We find that, given specific weights assigned to the models, adding both visual and affective representations improves performance, with visual representations providing an improvement especially for more concrete words, and affective representations improving especially the fit for more abstract words.  相似文献   
947.
A multiple factor approach was used to test additive and multiplicative models as well as to isolate a best predictive model of physical aggression. The variables of aggressive learning history, provocation, sex of target, sex of subject, sex-role orientation, and aggressive tendencies were selected. Eighty-three males and 117 females participated in the experimental session. Multiple regression analyses indicated that multiple predictor models were able to account for significantly more variance than were single predictor models; however, multiplicative models were unable to increase predictive efficacy. A model composed of sex of target, masculinity, and aggressive tendencies was established as the best predictive model for unprovoked aggression; provocation, masculinity, and aggressive tendencies made up the best predictive model of provoked aggression. © 1992 Wiley-Liss, Inc.  相似文献   
948.
Adaptive learning and assessment systems support learners in acquiring knowledge and skills in a particular domain. The learners’ progress is monitored through them solving items matching their level and aiming at specific learning goals. Scaffolding and providing learners with hints are powerful tools in helping the learning process. One way of introducing hints is to make hint use the choice of the student. When the learner is certain of their response, they answer without hints, but if the learner is not certain or does not know how to approach the item they can request a hint. We develop measurement models for applications where such on-demand hints are available. Such models take into account that hint use may be informative of ability, but at the same time may be influenced by other individual characteristics. Two modeling strategies are considered: (1) The measurement model is based on a scoring rule for ability which includes both response accuracy and hint use. (2) The choice to use hints and response accuracy conditional on this choice are modeled jointly using Item Response Tree models. The properties of different models and their implications are discussed. An application to data from Duolingo, an adaptive language learning system, is presented. Here, the best model is the scoring-rule-based model with full credit for correct responses without hints, partial credit for correct responses with hints, and no credit for all incorrect responses. The second dimension in the model accounts for the individual differences in the tendency to use hints.  相似文献   
949.
This article provides an overview of 20 years of professional experiences with developing and implementing a model for integrating behavioral health services into primary care. The Primary Care Behavioral Health (PCBH) model is designed to provide immediate access to behavioral care for a large number of primary care patients by positioning a behavioral health consultant in the exam room area to function as a core member of the primary care team. In an initial era of discovery, the authors were directly involved in developing and testing a variety of new approaches to providing behavioral health services in general medicine. In a second era focused on feasibility, the authors worked with Kaiser Permanente, the United States Air Force and Navy, the Veteran’s Administration, and the Bureau of Primary Care to system test this innovative model of integrated care. Now in an era devoted to dissemination, the authors review the various roles formal research, system level quality improvement initiatives and stakeholder analysis play in promoting integrated care. The authors also describe current efforts to (1) create a tool that helps systems develop integration targets and (2) use the PCBH model as a platform for teaching medical residents and behavioral health providers to work together in a redesigned primary care team model.  相似文献   
950.
被试在矩形房间中从两个不同的观察点学习物体场景并在多个朝向上对物体形成的空间关系进行判断,通过控制场景中物体主要内在轴相对于环境结构(房间和地毯)的方向和被试的学习顺序,探讨被试在场景空间表征中采用何种参照系和参照系选取时的影响因素。两个实验结果发现:(1)内在参照系(intrinsic reference systems)和环境参照系均可以用于物体场景的表征,两类参照系之间的关系却是影响被试物体场景表征时参照系选取的重要因素,即当内在参照系与环境参照系方向一致时,被试无论从哪个朝向学习,都选择从垂直于内在参照系和环境参照系的朝向进行表征。反之,当二者方向不一致时,表征时参照系的选择取决于被试的学习经历;(2)无论内在参照系与环境参照系方向是否一致,物体场景本身内在结构的规则性都能够促进空间记忆,即内在结构的规则性既有助于准确编码物体的相对位置,也有助于提高空间关系判断的准确性。  相似文献   
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