Alcoholism: A conflict of models

Adherents to the traditional model of alcoholism explain alcoholic behavior as a consequence of alcoholism. Alcoholism is identified as an unseen, unmeasured entity inherent in alcoholics. This concept parallels the thinking of Copernicus, Kepler, Galileo, and Newton, who believed in an unseen, unmeasurable creator behind the physical world. These traditional approaches contrast with the emergent model of alcoholism and twentieth-century scientific thought. Emergent scientific model adherents explain alcoholic behavior without resort to unseen factors. Since the traditional and emergent scientific models begin with different assumptions, model adherents experience communication difficulties. Future developments with determine which model will dominate the field of alcohol studies and treatment.     

Using mathematical models of language experimentally

Understanding developmental and evolutionary aspects of the language faculty requires comparing adult languages users' abilities with those of non-verbal subjects, such as babies and non-human animals. Classically, comparative work in this area has relied on the rich theoretical frameworks developed by linguists in the generative grammar tradition. However, the great variety of generative theories and the fact that they are models of language specifically makes it difficult to know what to test in animals and children lacking the expressive abilities of normal, mature adults. We suggest that this problem can be mitigated by tapping equally rich, but more formal mathematical approaches to language.     

Causal models frame interpretation of mathematical equations

We offer evidence that people can construe mathematical relations as causal. The studies show that people can select the causal versions of equations and that their selections predict both what they consider most understandable and how they expect variables to influence one another. When asked to write down equations, people have a strong preference for the version that matches their causal model. Causal models serve to structure equations by determining the preferred order of variables: Causes should be on one side of an equality, and a single effect should appear on the other.     

A note on mathematical models for learning

It is shown that a rational learning curve developed by Estes for paired associate learning is a special case of a more general function. The latter is the product of two functions and assumes that the discovery and fixation aspects of learning are independent. The indications are that the form of one of the functions has not been tested sharply by Estes in the paired associate learning setting.     

Diagnostic models for procedural bugs in basic mathematical skills

A new diagnostic modeling system for automatically synthesizing a deep-structure model of a student's misconceptions or bugs in his basic mathematical skills provides a mechanism for explaining why a student is making a mistake as opposed to simply identifying the mistake. This report is divided into four sections: The first provides examples of the problems that must be handled by a diagnostic model. It then introduces procedural networks as a general framework for representing the knowledge underlying a skill. The challenge in designing this representation is to find one that facilitates the discovery of misconceptions or bugs existing in a particular student's encoding of this knowledge. The second section discusses some of the pedagogical issues that have emerged from the use of diagnostic models within an instructional system. This discussion is framed in the context of a computer-based tutoring/gaming system developed to teach students and student teachers how to diagnose bugs strategically as well as how to provide a better understanding of the underlying structure of arithmetic skills. The third section describes our uses of an executable network as a tool for automatically diagnosing student behavior, for automatically generating “diagnostic” tests, and for judging the diagnostic quality of a given exam. Included in this section is a discussion of the success of this system in diagnosing 1300 school students from a data base of 20.000 test items. The last section discusses future research directions.     

组织中的人际冲突:类型、模型与表达

组织中的人际冲突是组织成员在分歧、负面情绪与干扰的相互作用下,通过意义建构导致互动双方在认知、情感与行为方面产生的一系列反应过程。现有研究将组织中的人际冲突分为单特征型和多特征型,集中探讨作用模型,并基于表达层面解析冲突的维度和作用模式。本文尝试将冲突类型、表达方式以及作用模型进行嵌入式整合,提出组织中人际冲突的具体应对策略。未来研究可将认知差异嵌入过程框架,探求冲突显现的临界点,验证应对方式的有效性,探究组织权力的影响,开展基于多元亚文化下组织中人际冲突的本土化研究。     

The international student sojourn,identity conflict and threats to well-being

ABSTRACT

This article reports findings from a qualitative (interview) study of the identity conflict experienced by five international students at a university in the south of England for whom real and perceived challenges to national self-image were shown to be unsettling. The article suggests that our cultures of origin are centrally important to our private and personal sense of self and it argues that counsellor educators and counsellors need to understand their students' and clients' emotional and behavioural problems in the context of their cultural identities. In this research, there was a strong emotional response to threats to collective identity, which appeared to be influenced by both the degree of students' cultural identification and their country's global standing. The following themes were generated from a thematic analysis and capture the essence of student responses to perceived derogation of their national identity: re-identifying with the culture of origin; allying with the West; resisting the discourse of western supremacy; and acquiescence with stigma. Of importance to all participants' perceptions of derogation was their location in the western world.     

The proper role of clusters in mathematical models of continuous recall

Previous research has shown that the number of words cumulatively recalled (N) at time (t) is a negatively accelerated function that reaches an asymptote as t → ∞. Research has also shown that the increase in N with t occurs in bursts or clusters. Several models purport to account for this cumulative recall curve in terms of cluster characteristics. The present research shows that previous models have not in fact successfully linked continuous recall to cluster characteristics. This research demonstrates that cluster models need to employ three empirical characteristics of clusters: T_b, the time between clusters; T_w, the average time between words within a cluster; and W_c, the number of words within a cluster. It is shown that these three quantities determine the cumulative recall curve, and these three quantities may in turn be characterized by four parameters. Of these four parameters, only three actually characterize the cumulative recall curve. Two parameters determine the initial slope and final asymptote of the curve, while a third parameter, which we introduce for the first time, characterizes the curve's shape. This latter parameter may be interpreted as the ratio ofthe time spent in retrieving and discarding a cluster that has been previously recalled to the amount of time spent in retrieving and outputting a newly encountered cluster. It is pointed out that previous success in fitting the cumulative recall data with a two-parameter function may be explained by the fact that this parameter lies in a restricted range about unity. Further experimental work is suggested to elucidate the behavior of this new parameter. Two models are then proposed to account for these characteristics of clusters and the shape of the recall curve.     

Role conflict and ambiguity of CEOs in international joint ventures: a transaction cost perspective

Insights from transaction cost economics were used to study the boundary conditions underlying the role conflict and ambiguity of 265 CEOs in Chinese-based international joint ventures. Role conflict and ambiguity were lower when the contract between parents was more complete. Contract completeness fully mediated the effects of parent objective gap and parent formalization on role ambiguity but only partially so in the case of role conflict. Role conflict was lower when the foreign parent was dominant in the venture but higher when the local parent was dominant. Role conflict and ambiguity were inversely related to cultural distance. Neither construct had a detrimental effect on international joint venture performance. Implications for role theory are discussed.     

冲突管理研究中的冲突定义

近年来许多学者致力于冲突管理的研究,在已有的研究成果中,对冲突的定义不尽相同。本文对先前研究中学者们对冲突所下的定义做以总结。在阅读了大量文献资料的基础上,本文按照不同意见、负面情感、恶意妨碍三个方面对冲突的定义进行分类,共总结出关于冲突的七种定义。对于每种定义,本文都阐述了冲突的产生及其对组织的影响。     

A comparative test of work-family conflict models and critical examination of work-family linkages

This paper is a comprehensive meta-analysis of over 20 years of work-family conflict research. A series of path analyses were conducted to compare and contrast existing work-family conflict models, as well as a new model we developed which integrates and synthesizes current work-family theory and research. This new model accounted for 40% of the variance in job satisfaction, 38% of the variance in family satisfaction, and 35% of the variance in life satisfaction. In a critical examination of work-family linkages, a series of analyses excluding work-family conflict constructs and pathways resulted in a well-fitting and more parsimonious model that still accounted for 39% of the variance in job satisfaction, 37% of the variance in family satisfaction, and 33% of the variance in life satisfaction. Results indicate that direct effects drive work-family conflict models while indirect effects provide little incremental explanation in regards to satisfaction outcomes.     

The role of retributive justice and the use of international criminal tribunals in post‐conflict reconciliation

Four experiments examined people's responses to intergroup violence either committed or suffered by their own group. Experiment 1 demonstrated that Serbs who strongly glorified Serbia were more supportive of future violence against, and less willing to reconcile with, Bosniaks after reading about Serbian victimization by Bosniaks rather than Serbian transgressions against Bosniaks. Replicating these effects with Americans in the context of American–Iranian tensions, Experiment 2 further showed that demands for retributive justice explained why high glorifiers showed asymmetrical reactions to ingroup victimization vs. perpetration. Again in the Serb and the American context, respectively, Experiments 3 and 4 demonstrated that post‐conflict international criminal tribunals can help satisfy victim group members' desire for retributive justice, and thereby reduce their support for future violence and increase their willingness to reconcile with the perpetrator group. The role of retributive justice and the use of international criminal justice in intergroup conflict (reduction) are discussed.     

Some models of balance applied to children's perceptions of international relations

Data obtained from four national samples of 6–11 year old children are presented, showing preference for four countries, perceived friendship of these countries with the subject's own country and perceived relationships among the target-countries. Two quantitative analogues of Heider's balance theory are used to examine the relations between these sets of data, one employing a multiplicative and the other a distance approach. Both models were found to fit the data adequately, further research being needed to discriminate between them. An explanation in terms of ‘ethnocentric correspondence’ is given to explain why prediction is noticeably better for British and Austrian than for Belgian and Greek samples.