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This study aims at specifying some of the cognitive processes underlying decision-making in squash competition. More specifically, the study focuses on the strategy of the defending player (D) when chosing among three categories of preparation (total preparation for one particular event, partial preparation in favor of one event and absence of biased preparation). D is viewed as an information processing system (IPS) placed in a problem-solving situation, the problem being what decision to reach. The results obtained in a preceding investigation about the nature of the information processed by a player to anticipate and prepare for the opponent's shot in a real game setting, are used to determine a typical protocol of the behavior of D. The analysis of this protocol allows one to formally define (in Backus-Normal-Form) the problem space of D which is also D's internal representation of the task environment. From the problem space are derived (1) the problem behavior graph depicting the search of D through his problem space for a solution, and (2) the production system (a set of conditional statements, each expressing what to do under specific conditions) defining the logic of the search. The results of this first phase of the simulation study of a decision-making model of squash competition show that the cognitive strategy of D is based upon the use of a specific preformed algorithm. This algorithm could be stored in some long-term memory and activated by the current state of information in short-term memory. Finally, the proposed model also leads to the suggestion that the cognitive strategy of the performer may be influenced by a variety of factors such as the experience of the player, the time pressure, the expectancies, the performer's confidence in his predictions and the mistakes caused by incorrect predictions. 相似文献
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Joseph M. F. Jaspars John. P. Van De Geer Henri Tajfel Nicholas Johnson 《European journal of social psychology》1972,2(4):347-369
The present study consists of three related experiments which are concerned with the development of national attitudes in children between the ages of seven and twelve. It was predicted on the basis of a structural interpretation of Allport's three-stage developmental theory of prejudice that national attitudes will increase at first due to increasing consistency of judgment and decrease afterwards due to cognitive differentiation. The hypothesis is partially confirmed with respect to the attitudes of children towards other countries but not confirmed with respect to the attitudes of children towards people who are perceived as foreigners. A tentative explanation is offered for the last finding. It was shown moreover that the attitudes of older children display more cognitive balance than those of younger children. In connection with the last problem, a quantified modification Bf Heider's theory of balanced states was introduced. 相似文献
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Richard Y. Bourhis Howard Giles Henri Tajfel 《European journal of social psychology》1973,3(4):447-460
The study was designed, using the ?matched-guise' technique, to determine how different groups of Welshmen perceive members of their own national group who use various linguistic codes. Three matched groups of adult Welsh Ss were used: Bilinguals, those who were learning Welsh and those who could not speak Welsh and were not learning it either. These Ss were asked to evaluate on 22 scales the personalities of various Welsh speakers they heard reading the same passage of prose on tape. Essentially, the stimulus tape consisted of two male bilinguals reading the passage once each in Welsh, in English with a Welsh accent and in English with an RP accent. It was found, despite the fact that the groups differed in their language skills and self-perceived Welshness, that Ss as a whole upgraded the bilingual speakers on most traits. Indeed, the RP speakers were evaluated most favourably on only one trait - self-confidence. It was suggested that language to a large extent serves as a symbol of Welsh identity, and the results were discussed in relation to how other ethnic groups appear to view their own linguistic codes. 相似文献
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The present study is one of a series exploring the role of social categorization in intergroup behaviour. It has been found in our previous studies that in ?minimal' situations, in which the subjects were categorized into groups on the basis of visual judgments they had made or of their esthetic preferences, they clearly discriminated against members of an outgroup although this gave them no personal advantage. However, in these previous studies division into groups was still made on the basis of certain criteria of ?real' similarity between subjects who were assigned to the same category. Therefore, the present study established social categories on an explicitly random basis without any reference to any such real similarity. It was found that, as soon as the notion of ?group' was introduced into the situation, the subjects still discriminated against those assigned to another random category. This discrimination was considerably more marked than the one based on a division of subjects in terms of interindividual similarities in which the notion of ?group' was never explicitly introduced. In addition, it was found that fairness was also a determinant of the subjects' decisions. The results are discussed from the point of view of their relevance to a social-cognitive theory of intergroup behaviour. 相似文献
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Henri Tajfel M. G. Billig R. P. Bundy Claude Flament 《European journal of social psychology》1971,1(2):149-178
The aim of the studies was to assess the effefcs of social categorization on intergroup behaviour when, in the intergroup situation, neither calculations of individual interest nor previously existing attitudes of hostility could have been said to have determined discriminative behaviour against an outgroup. These conditions were satisfied in the experimental design. In the first series of experiments, it was found that the subjects favoured their own group in the distribution of real rewards and penalities in a situation in which nothing but the variable of fairly irrelevant classification distinguished between the ingroup and the outgroup. In the second series of experiments it was found that: 1) maximum joint profit independent of group membership did not affect significantly the manner in which the subjects divided real pecuniary rewards; 2) maximum profit for own group did affect the distribution of rewards; 3) the clearest effect on the distribution of rewards was due to the subjects' attempt to achieve a maximum difference between the ingroup and the outgroup even at the price of sacrificing other ‘objective’ advantages. The design and the results of the study are theoretically discussed within the framework of social norms and expectations and particularly in relation to a ‘generic’ norm of outgroup behaviour prevalent in some societies. 相似文献
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In three studies the hypothesis was tested that for young Dutch children, who associate Saint Nicholas with the norm to share one's wealth with others, attributes of Saint Nicholas (miter, book, and staff) would spontaneously activate the “sharing norm” and subsequent sharing behavior. The results confirmed our expectations. In two studies, young Dutch children share more candy with others after being primed with attributes of Saint Nicholas compared to being primed with a dwarf in the control condition. In a third study, children evaluate sharing more positively after being primed with attributes of Saint Nicholas, and more negatively after being primed with the Toys R Us logo, compared to being primed with a dwarf. This is the first empirical evidence that attributes of normative symbols can induce normative behavior and change norm judgments. Copyright © 2008 John Wiley & Sons, Ltd. 相似文献