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11.
Hubert M. Clements Jack A. Duncan Wallace M. Taylor 《Journal of counseling and development : JCD》1969,47(9):891-896
Attention is focused on some of the factors which may result in the invalidation or distortion of both objective and subjective evaluations of students from the lower socioeconomic strata of the population. These factors include: (a) counselor attitude in evaluation; (b) counselee attitude in evaluation; (c) counselor-counselee value systems; (d) test weaknesses such as low reliability and/or validity and inadequate norms; and (e) a lack of understanding by the counselor and/or counselee of the purpose for testing. Evaluation is an integral part of the counseling process; however, the effectiveness of the evaluative process is dependent upon the counselor's knowledge and sense of responsibility as well as the validity and reliability of the tests. 相似文献
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13.
Carol Duncan Walter B. Pryzwansky 《Journal of multicultural counseling and development》1993,21(2):88-96
This study explores Black teachers' preferences for and ratings of consultant effectiveness as a function of consultant race, consultant style, and teacher stage of racial identity development. No significant differences were noted in preferences for either a same- or opposite-race consultant. Participants preferred and rated as more effective an instrumentally oriented consultant. 相似文献
14.
ABSTRACT Subjects consisted of a sample of two cohorts of approximately 100 boys each whose behaviors were rated by their parents and teachers. Criterion variables included antisocial behavior, based on parent, child, teacher, and interviewer reports, and delinquency, based on parent and child reports in addition to cumulative arrest data taken from juvenile court records. The data suggest that mothers are focused on the daily, irritating behaviors of their sons. Teachers, on the other hand, appear to focus on a relatively small number of items (e.g., child physically attacks others, associates with deviant peers), and thereby provide ratings that are better predictors of delinquency and arrest. When the mothers' ratings were constrained to include only items that were salient for teachers, their predictive validity coefficients approached the magnitude of the teacher coefficients. 相似文献
15.
Several neural networks were developed inMathematica in order to explore the role of “spiky” neurons in neural network memory simulations. UsingMathematica for this task confirmed its value as a powerful tool for neural network development: It exhibited distinct advantages over other environments in programming ease, flexibility of data structures, and the graphical assessment of network performance. 相似文献
16.
Recent memory theory has emphasized the concept ofneed probability—that is, the probability that a given piece of learned information will be tested at some point in the future. It has been proposed that, in real-world situations, need probability declines over time and that the memory-loss rate is calibrated to match the progressive reduction in need probability (J. R. Anderson & Schooler, 1991). The present experiments were designed to examine the influence of the slope of the need-probability curve on the slope of the retention curve. On each of several trials, subjects memorized a list of digits, then retained the digits in memory for 1, 2, 4, 8, or 16 sec. Some trials ended with a recall test; other trials ended with the message, “no test.” In Experiment 1, the likelihood of encountering a memory test (i.e., the need probability) was made to either increase or decrease as the retention interval increased; in Experiment 2, need probability either was flat (invariant across retention intervals) or decreased as the retention interval increased. The results indicated that the shape of the need-probability curve influenced the slope of the retention curve (Experiment 1) and that the effect became larger as the experimental session progressed (Experiment 2). The findings support the notion that memory adapts to need probabilities and that the rate of forgetting is influenced by the slope of the need-probability curve. In addition, all of the forgetting curves approximated a power function, suggesting that need probability influences the slope but not the form of forgetting. 相似文献
17.
Piaget and Vygotsky Revisited: Dialogue or Assimilation? 总被引:1,自引:0,他引:1
Duncan Robert M. 《Developmental Review》1995,15(4)
In response to suggestions for merging Piagetian and Vygotskian psychology on the basis of their apparent similarity (e.g., Glassman, 1994), it is argued that numerous differences between the two paradigms constitute fundamental principled disagreements, and that these ought not to be minimized or simplified. Some fundamental differences involve underlying philosophy, social influences on development, the nature of the developmental process itself, developmental stages, and universality of cognitive structures. It is argued that a project of combining Piagetian and Vygotskian psychology would be premature at best, and that continued dialogue between these two distinct perspectives would be of greater value. 相似文献
18.
John Duncan 《Attention, perception & psychophysics》1995,57(1):117-120
Results recently reported by Driver, McLeod, and Dienes (1992) are used to contrast three accounts of visual search—in particular, their mechanism for easy conjunction search. In the Driver et al. study, the target was defined by a conjunction of form and movement; the key manipulation was phase in both target and nontarget motion sets. Mechanisms working separately on each display element (inhibition from nontarget features, facilitation from target features) are unable to explain large effects of phase, since this is defined only by relationships between one element and another. As implemented in the guided search model of Cave and Wolfe (1990), local suppression between similar elements is also unable to account for the results. More promising is an approach based on perceptual grouping: Elements moving in phase can be selected (target motion) or rejected (nontarget motion) as a group. Rather than a bias against elements that are similar to or grouped with their neighbors, there is a bias to treat grouped elements together. 相似文献
19.
Duncan Cramer 《Counselling psychology quarterly》1994,7(3):327-337
A LISREL or path analysis with latent variables was used to test the Rogerian-derived hypothesis that self-esteem is determined by the degree to which a person has a current close friend who is seen to be unconditionally accepting, empathic, and congruent. The revised Barrett-Lennard (1964) Relationship Inventory and Rosenberg (1965) Self-Esteem Scale were completed by 38 female and 28 male students on two occasions 15 weeks apart. The hypothesis was conjimzed for unconditionality of acceptance (which was positive) and the core conditions combined. In addition, the temporal relationships between the core conditions were analysed. Level of acceptance was reciprocally related to both empathy and congruence, while prior congruence had a negative but nonsignajicant association with unconditionality of acceptance. 相似文献
20.