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Family resemblances: Studies in the internal structure of categories   总被引:2,自引:0,他引:2  
Six experiments explored the hypothesis that the members of categories which are considered most prototypical are those with most attributes in common with other members of the category and least attributes in common with other categories. In probabilistic terms, the hypothesis is that prototypicality is a function of the total cue validity of the attributes of items. In Experiments 1 and 3, subjects listed attributes for members of semantic categories which had been previously rated for degree of prototypicality. High positive correlations were obtained between those ratings and the extent of distribution of an item's attributes among the other items of the category. In Experiments 2 and 4, subjects listed superordinates of category members and listed attributes of members of contrasting categories. Negative correlations were obtained between prototypicality and superordinates other than the category in question and between prototypicality and an item's possession of attributes possessed by members of contrasting categories. Experiments 5 and 6 used artificial categories and showed that family resemblance within categories and lack of overlap of elements with contrasting categories were correlated with ease of learning, reaction time in identifying an item after learning, and rating of prototypicality of an item. It is argued that family resemblance offers an alternative to criterial features in defining categories.  相似文献   

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Researchers have noted a physical resemblance (homophily) between human sex partners. To date, these studies and their related interpretations have been based on heterosexual couples. The present study compared physical resemblances between gay, lesbian, and heterosexual couples, using 40 photographs of each from national newspapers, which were rated by 34 men and 56 women (M age = 53 yr., SD = 12.1). Half the photographs were of actual couples and half were randomly mixed within each group. Actual couples were rated as significantly more similar in appearance than random pairings of people. Ratings of similarity were significantly higher (indicating greater perceived homophily) for gay couples than heterosexual couples, while there was no statistically significant difference in similarity ratings between lesbian couples versus gay and heterosexual couples. The results were interpreted in terms of evolutionary and parental imprinting hypotheses.  相似文献   

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Piaget and Vygotsky are two influential developmental psychologists. One can even say that their contributions to developmental psychology, albeit different, are similarly remarkable and unique. This article is in four parts. In the first part, I refer briefly to a commonly noticed difference between Vygotsky’s and Piaget’s theories. In the second part, I show that there are many resemblances between Vygotsky and Piaget. In the third part, I argue that in spite of such resemblances, there exists a crucial, and generally unnoticed, difference between Piaget’s and Vygotsky’s theories, and that this difference underlies the way each author addresses the following issues: 1) the origins of development and the motor of development; 2) the relationships among equal peers vs. those based on authorities, as they are sources of development and learning; 3) the more appropriate methods for studying developmental changes; 4) the importance of the distinction between true vs. necessary knowledge; and 5) the role of transformation and personal reconstruction vs. that of transmission and social influence in the phenomena of development and learning. Finally, I summarize the main ideas and arguments which I elaborate throughout this article, and mention what can be gained when the generally ignored aforementioned difference is noticed.  相似文献   

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韩海浪 《学海》2004,(6):76-78
继十六大为中国民营经济彻底“正名”之后,十六届三中全会又通过《关于完善社会主义市场经济体制若干问题的决定》,指出要“大力发展和积极引导非公有制经济”,并提出具体办法和措施,从而为民营经济提供了更加有利的发展环境。这样的背景下,各地一方面积极清理和修订限制民营经  相似文献   

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ABSTRACT

This study contributes to the existing research literature by assessing how the frequency of family mealtimes correlates with family communication and life satisfaction. Participants consisted of 50 families from the Southeastern United States. Parent and child participants completed measures assessing frequency of family mealtime, family communication, and family satisfaction. Results indicated that, based on parent-report, the frequency of all family members eating dinner together was significantly and positively correlated with both family communication and family satisfaction. Implications of findings highlight the importance of encouraging regular mealtime interactions among families.  相似文献   

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An essay to develop some of Wittgenstein's remarks about the notion of ‘criteria’ and to give the concept clarity even at the expense of some features Wittgenstein claimed for it. This effort was made because of the important role ‘criteria’ plays in Wittgenstein's discussions of feelings and mental states, and it is hoped that a defense of ‘criteria’ will make those discussions more coherent. An attempt is made to relate this notion of ‘criteria’ to the definition and expression of mental states, following some of Wittgenstein's suggestions, and to rebut skepticism about other minds.  相似文献   

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I propose formulating identity criteria as generic statements of ground, thereby avoiding objections that have been made to the more usual formulations.  相似文献   

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家族伦理、家族愿景和华人家族企业的内部治理   总被引:2,自引:0,他引:2  
华人家族企业在内部治理上体现出一定的独特性,这种独特性和华人社会中的家族伦理有着一定的对应关系,表征为基于纵向有序伦理的家长式权威治理以及基于横向差序有别伦理的关系治理.华人社会中的家族伦理之所以会从日常领域嵌入到企业场域并产生强势影响,很大程度上是出于家族愿景的偏好.并主要体现在代际传承和控制权让渡层面;但值得关注的是:由于企业组织理性、市场理性和家族伦理的非兼容性,家族成员尤其是家族企业主持人会在一定程度上超越家族伦理理念并进而矫正、优化企业的内部治理机制,带来有限度的"伦理脱嵌".  相似文献   

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Family members of people with serious mental illnesses (SMI) need information and support to cope with the considerable stresses they experience. The Family to Family Education Program (FtF) is a structured, peer-led, 12-week information and support self-help class for such individuals. Previous research by Dixon et al. (2004) shows reduced subjective burden and increased empowerment among graduates. The present study sought to understand what processes take place during FtF participation that might lead to these benefits, as a first step in building a conceptual model of how FtF causes its effects, using semi-structured interviews with 31 FtF graduates. Qualitative data analysis suggested that new factual and emotional information from FtF shifts interviewees' understanding of their situation and that skills acquired through FtF then allow participants to incorporate these new perspectives into more adaptive behaviors. These changes led to both proximal and distal benefits for the FtF participants interviewed. The results are discussed in the context of self-help, stress-and-coping, and trauma recovery theories.  相似文献   

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Three approaches to the determination of behavioral stability were examined. In the first, a learning curve was fit to acquisition data (from Cumming and Schoenfeld, 1960), and the “experiment” stopped when the data approached sufficiently close to the theoretical asymptote. In the second, the data were analyzed for variability and linear and quadratic trend. In the third, the experiment was stopped when the magnitude of the daily changes in the data fell below a criterion. Accuracy was measured as deviation between the average value of the dependent variable when the experiment was stopped, and the average value over the last 100 sessions. The first approach was most accurate, but at the cost of requiring the most sessions and being the most difficult to apply. Both the second and third approaches provided acceptable criteria with a reasonable cost-accuracy tradeoff. The second approach permits a continuous adjustment of the criteria to accommodate the variability intrinsic in the experimental paradigm. The third, nomothetic, approach also takes into account the decreasing marginal utility of extended training sessions.  相似文献   

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This contribution is an essay about the notion of family identity reflecting shared significant experiences within a family system originating a set of signs used in social communication within and between families. Significant experiences are considered as experiences of events that have an immediate impact on the adaptation of the family in a given socio-ecological and cultural context at a given historical time. It is assumed that family history is stored in a shared “family memory” holding both implicit and explicit knowledge and exerting an influence on the behavior of each family member. This is described as transgenerational family memory being constituted of a system of meaningful signs. The crucial dimension underlying the logic of this essay are the ideas of adaptation as well as self-reproduction of systems.  相似文献   

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Most of the currently used analytic rotation criteria for simple structure in factor analysis are summarized and identified as members of a general symmetric family of quartic criteria. A unified development of algorithms for orthogonal and direct oblique rotation using arbitrary criteria from this family is given. These algorithms represent fairly straightforward extensions of present methodology, and appear to be the best methods currently available.The research done by R. I. Jennrich was supported by NSF Grant MCS-8301587.  相似文献   

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