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951.
Defining a Family of Cognitive Diagnosis Models Using Log-Linear Models with Latent Variables 总被引:2,自引:0,他引:2
This paper uses log-linear models with latent variables (Hagenaars, in Loglinear Models with Latent Variables, 1993) to define a family of cognitive diagnosis models. In doing so, the relationship between many common models is explicitly
defined and discussed. In addition, because the log-linear model with latent variables is a general model for cognitive diagnosis,
new alternatives to modeling the functional relationship between attribute mastery and the probability of a correct response
are discussed. 相似文献
952.
Perez-Lancho Belen; Jorge Elena; de la Viuda Ana; Sanchez Raquel 《Logic Journal of the IGPL》2007,15(4):347-357
Computers are increasingly present in education and make manyresources and activities available to teachers and pupils. Newpedagogical resources development is very interesting for both.Our digital library Summa Logicae is overtly involved in innovationand pedagogical systematization. It includes some software toolsfor teaching logic developed by computer science students, andin this article we present two of these tools. The MAFIA toolis especially attractive for first year students and helps themto understand the basic concepts of logic in an interactiveway using sematic tableaux. It also allows them to solve thecrazy cases in Mafia which their fellow students from previousyears proposed. The Modelos de Kripke tool, oriented to a moreadvanced level, serves for understanding the link between theproperties of the accessibility relation and the modal formulas,which is at the basis of the current developments of modal logic. 相似文献
953.
I provided a more personal view of Wachtel's (1980) article. I began by discussing the extent to which my own research program complied with his distinctive recommendations. After offering a different take on the impact of high productivity, I focused on (a) the negative effects of the quest for extramural funding and (b) the positive effects of a better balance between theoretical and empirical contributions. I then turn to some of my own theoretical and empirical studies of the place that theory has in successful science. This research suggests that theory only has a beneficial effect when it is integrative in function and when it is closely constrained by available data. I end with a speculation regarding the value of having theories that are maximally formal, even mathematical. 相似文献
954.
To test the causal status of responsibility in obsessive-compulsive disorder (OCD), an experiment was executed in which responsibility was experimentally manipulated. OCD patients, non-OCD anxiety controls, and non-patients executed a classification task in either a high or a low responsibility (LoRes) condition. Subjective ratings related to danger and responsibility indicated that the manipulation was successful. Subjective OCD-like experiences and checking behaviors were higher in OCD patients in the high responsibility (HiRes) condition than in all other groups. Although the checking subscale of the Padua Inventory correlated with subjective ratings in the OCD patients in the HiRes condition, it was not associated with checking behaviors. The results confirm the hypothesis that responsibility plays a causal role in OCD. 相似文献
955.
To learn a language, speakers must learn its words and rules from fluent speech; in particular, they must learn dependencies among linguistic classes. We show that when familiarized with a short artificial, subliminally bracketed stream, participants can learn relations about the structure of its words, which specify the classes of syllables occurring in first and last word positions. By studying the effect of familiarization length, we compared the general predictions of associative theories of learning and those of models postulating separate mechanisms for quickly extracting the word structure and for tracking the syllable distribution in the stream. As predicted by the dual-mechanism model, the preference for structurally correct items was negatively correlated with the familiarization length. This result is difficult to explain by purely associative schemes; an extensive set of neural network simulations confirmed this difficulty. Still, we show that powerful statistical computations operating on the stream are available to our participants, as they are sensitive to co-occurrence statistics among non-adjacent syllables. We suggest that different learning mechanisms analyze speech on-line: A rapid mechanism extracting structural information about the stream, and a slower mechanism detecting statistical regularities among the items occurring in it. 相似文献
956.
共享心智模型研究现状 总被引:31,自引:4,他引:27
共享心智模型是指团队成员共同拥有的知识结构,它使得团队成员能就团队作业形成正确的解释和预期,从而协调自己的行为以适应于团队作业和其他团队成员的需求。其研究为理解和提高团队绩效提供了新的视角,从而成为了团队研究的新热点。该文首先明确其定义以及相关概念,再介绍它的几种类型,进而介绍研究中采用的测量方法,最后总结其影响因素及对团队绩效的影响。文章最后指出研究中存在的问题以及今后的研究方向。 相似文献
957.
958.
ELAINA MARIA KYROUZ KEITH HUMPHREYS 《Journal of community & applied social psychology》1997,7(2):105-118
Previous research has demonstrated that characteristics of the health care workplace influence staff outcomes such as morale and burnout, but the potential effect of health care workplaces on the treatment environment has been little studied. Building on a model proposed by Schaefer and Moos (1993), we propose that the workplace factors of supervisory work environment (e.g. support from supervisors, managerial control) and programme philosophical orientation (e.g. disease model of addiction, psychosocial learning model of addiction) predict four treatment environment elements: patient autonomy, staff control, staff sensitivity, and patient alienation. Multiple regression analysis of data drawn from a survey (response rate = 86%) of 327 staff members at 15 Veterans Affairs (VA) inpatient substance abuse treatment programmes revealed that greater managerial control over staff predicted greater patient alienation, lower staff sensitivity towards patients, and greater staff control over patients. Stronger disease model programme orientations predicted less patient alienation and greater staff sensitivity, whereas stronger psychosocial model programme orientations predicted less staff control. These results suggest that health care workplaces may influence treatment environments. Implications for further research and practice are discussed. © 1997 John Wiley & Sons, Ltd. 相似文献
959.
David Rios Insua Kazimierz A. Salewicz 《Journal of Multi-Criteria Decision Analysis》1995,4(4):203-222
The paper describes a successful application of Bayesian decision analysis to the operation of the Lake Kariba hydropower system. This management problem is complicated by the high uncertainty of the inflow process, multiple and conflicting objectives and the influence of time on some of the parameters in the management task. Inflows to the reservoir are forecast through dynamic linear models. Managerial preferences are modelled through a multiattribute utility function. Since the solution of the exact model is computationally too demanding, a heuristic method is applied to find a feasible control strategy. A comparison with results obtained by methods used previously demonstrates the superiority of the methodology presented here. 相似文献
960.
Pattie Luk-Fong Yuk Yee 《Counselling psychology quarterly》2005,18(3):193-206
Unlike many other places in the world, guidance lessons in Hong Kong are taught mainly by class teachers rather than school counsellors. Given the unique educational context of Hong Kong as East meets West and given that guidance is essentially a concept from the West, it is important to investigate what kind of pedagogy is suitable for teaching guidance in Hong Kong. This paper examines what teaching guidance lessons are like in Hong Kong for the researcher and for some primary teachers. A qualitative case study methodology is used. Data are drawn from the author's own experience in a primary school teaching attachment and interviews with guidance professionals, primary school principals, teachers and students in three selected primary schools in Hong Kong. Pedagogical issues for the teaching guidance curriculum are explored and discussed. The researcher argues for a hybrid guidance pedagogy for the teaching of classroom guidance in Hong Kong. Findings are applicable to countries facing similar issues in parallel mixed cultural settings. 相似文献