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281.
282.
A note on correlation clusters and cluster search methods 总被引:1,自引:0,他引:1
Raymond Cattell 《Psychometrika》1944,9(3):169-184
Four methods of determining the clusters in a correlation matrix are described and compared. The choice of method has to be made according to the size of the matrix and the type of cluster sought. The relativity of clusters is emphasized and a distinction is drawn between phenomenal clusters and nuclear clusters. The relative utility of clusters and factors is briefly commented upon. 相似文献
283.
This article presents a Coefficient of Imbalance applicable to any type of communication that may be classified into favorable content, unfavorable content, neutral content, and non-relevant content. The combined influence of the average presentation of relevant content and the average presentation of total content is reduced to two components, the coefficients of favorable imbalance and of unfavorable imbalance. A precise definition of imbalance is developed and measured against ten criteria.The authors wish to express their appreciation to Mr. Harold Elsten, Dr. Natan C. Leites, and Mr. Ithiel Pool for valuable suggestions and criticisms. 相似文献
284.
David B. Lennox Raymond G. Miltenberger David R. Donnelly 《Journal of applied behavior analysis》1987,20(3):279-284
We assessed the efficacy of several procedures for reducing the rate of eating responses during mealtime by three institutionalized mentally retarded clients. A time-based (15 s) response interruption procedure was implemented which resulted in little change in eating responses for 2 of 3 subjects. A spaced-responding DRL 15-s procedure resulted in decreases in eating responses to target levels only after a prompting procedure was added. Procedures were evaluated using a multiple baseline across subjects design with assessment of generalization to nontreated meals. A change in eating behavior during breakfast occurred only after direct training in the breakfast setting. Maintenance data were collected at 1- and 5-month follow-up periods. 相似文献
285.
Syntactic frozenness in processing and remembering idioms 总被引:3,自引:0,他引:3
Three experiments examined the effect of syntactic frozenness on understanding and memory for idiomatic expressions. In Experiment 1 we established a frozenness continuum by asking subjects to judge whether idioms in different syntactic forms maintained their idiomatic meanings. The results of Experiment 2 indicated that subjects processed idiomatic expressions more quickly than they did nonidiomatic, control strings. Moreover, subjects are faster at processing frozen idioms than they are at understanding flexible ones. The final experiment found that the degree of syntactic frozenness has an effect on memory for idioms in that flexible idioms were recalled more often than were frozen ones. These data overall support the idea that idioms are part of the normal lexicon, but are accessed differentially according to their degree of syntactic frozenness. 相似文献
286.
This research was designed to test the adequacy of H. Tajfel's (1978, Differentiation between social groups: Studies in the social psychology of intergroup relations, New York/London: Academic Press) theory of social identity for predicting cooperative behavior among members of ethnically mixed groups. Equally divided by sex, subjects were 24 Anglo-American and 24 Hispanic undergraduate students attending the University of California, Riverside. Subjects were exposed to cooperative and competitive feedback in four-member, same-sex groups which varied in the ratio of Anglo to Hispanic subjects to create two conditions—a 3 to 1 versus a 1 to 3 in-group to out-group composition. Results showed that members of both ethnic groups were equally cooperative when their own group was in the numerical majority (low-salience condition). In the high-salience condition, however, when their own group was in the numerical minority, Hispanic subjects were significantly more competitive than Anglo subjects. In addition, while Hispanics were significantly more competitive in the minority than in the majority condition, Anglos showed a slight tendency to be less competitive in the minority than in the majority condition. These results are discussed in light of social identity theory and its application to the study of interethnic cooperation/competition in heterogeneous groups. 相似文献
287.
Raymond Turner 《Studia Logica》1985,44(2):165-186
By the term nominalization I mean any process which transforms a predicate or predicate phrase into a noun or noun phrase, e.g. feminine is transformed into feminity. I call these derivative nouns abstract singular terms. Our aim is to provide a model-theoretic interpretation for a formal language which admits the occurrence of such abstract singular terms. 相似文献
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