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171.
Doris Fay Harald Lührmann Carsten Kohl 《European Journal of Work and Organizational Psychology》2013,22(2):241-267
This study explored the effects of proactive climate on performance in a post-reorganization setting. We hypothesized that proactive climate should have both a direct effect on unit performance and should—in the sense of the “substitutes for leadership” approach—enhance the effect of managers' entrepreneurial attributes (e.g., personal initiative) on unit performance. Hypotheses were tested using data from organizational units, called “centres” (n?=?35), of four recently reorganized public transport organizations. Managers provided ratings of centre performance, and centre members assessed their centre's climate. Proactive climate was positively related with performance. Moderated regression analyses revealed significant interaction effects between proactive climate and some centre manager variables; however, the interaction pattern indicated that proactive climate compensated for a low degree of entrepreneurial attributes. 相似文献
172.
173.
Many studies have found that patients with Alzheimer's disease (AD) perform significantly worse than normal controls on verbal fluency tasks. Moreover, some studies have found that AD patients' deficits compared to controls are more severe for semantic fluency (e.g., vegetables) than for letter fluency (e.g. words that begin with F). These studies, however, have not taken category size into account. A comparison of AD patients and age-matched controls on three semantic and three letter categories revealed that both the size and type of a category significantly predicted AD patients' deficits on verbal fluency tasks. These results suggest that the verbal fluency of AD patients will be most attenuated on large semantic categories. 相似文献
174.
Despite a congenital stroke, overall intelligence at school age is generally within the normal range. Language acquisition problems are more prominent when children are younger (<5 years of age) than when they are older. They are present after both right and left lesions, but appear to have different features. They are less apparent than in the child with a developmental language disorder. Acquired aphasia in childhood results in subtle and often persisting deficits. Children with congenital strokes are at risk for behavioral and psychiatric problems. Those with congenital right hemisphere strokes appear to be more difficult infants, but there is no clear side of lesion effect in older children. Children with congenital right hemisphere strokes have more prominent spatial difficulties than their left lesion counterparts. Evaluating both the process and the product highlights this. Increasing the difficulty of the task often brings out deficits in the right lesion group even when they seemingly recovered. 相似文献
175.
176.
The present study used a chimeric stimuli task to assess the magnitude of the left-hemispace bias in children with congenital unilateral brain damage (n = 46) as compared to typically developing matched controls (n = 46). As would be expected, controls exhibited a significant left-hemispace bias. In the presence of left hemisphere (LH) damage, the left-hemispace preference was found to be present, but attenuated, whereas right hemisphere (RH) damage resulted in a less lateralized process. Examination of lesion severity revealed that large lesions in the RH were associated with a reversal of the typical left-hemispace bias, while small lesions resulted in a left bias approximating that of controls. In contrast, the left-hemispace preference in children with LH damage was similar across lesion size. We conclude that damage to either hemisphere early in brain development may alter hemispheric preference for processing of nonverbal stimuli, and that at least in the case of RH damage, alteration of the normal perceptual asymmetry may depend on the interaction between lesion side and severity. 相似文献
177.
Self-Concepts, Domain Values, and Self-Esteem: Relations and Changes at Early Adolescence 总被引:3,自引:0,他引:3
Jacquelynne S. Eccles Allan Wigfield Constance A. Flanagan Christy Miller David A. Reuman Doris Yee 《Journal of personality》1989,57(2):283-310
We assessed how children's self-concepts of ability for mathematics, English, social, and physical skills activities, ratings of the importance of these activities, and general self-esteem change across the transition to junior high school. Three types of change were assessed: change in mean levels, change in stability, and change in relationships. Twice each year during the sixth and seventh grades, 1,450 children completed questionnaires. Mean levels of children's self-esteem were lowest immediately after the transition, but recovered during seventh grade. Self-concept of ability and importance ratings for math and sports activities showed linear declines. Self-concept of ability for social activities showed a cubic trend, but importance ratings for social activities declined in a linear fashion. Children's self-concepts of ability for math and English became less stable across the junior high transition, whereas beliefs about other activities and general self-esteem were more stable in seventh grade. 相似文献
178.
Carolyn W. Green Dennis H. Reid Linda K. White Richard C. Halford Doris P. Brittain Shirley M. Gardner 《Journal of applied behavior analysis》1988,21(1):31-43
We evaluated a systematic means of determining stimulus preferences among seven profoundly handicapped persons. Preferences were determined by observing student approach responses to individual stimuli. Results indicated that there were differential stimulus preferences across the multiply handicapped participants. However, results of the systematic assessment did not coincide with the results of a more traditional, caregiver-opinion method of assessing student preferences. A second experiment was then conducted with five participants to evaluate whether stimuli that were assessed to consistently represent preferences would function as reinforcers in skill training programs. Results indicated that stimuli that were systematically assessed to represent student preferences typically functioned as reinforcers when applied contingently. However, preferred stimuli as reflected by caregiver opinion did not function as reinforcers unless those stimuli were also preferred on the systematic assessment. Results are discussed in terms of assisting profoundly handicapped persons by (a) improving the effectiveness of training programs by increasing the likelihood of using stimuli that have reinforcing value and (b) increasing the overall quality of life by providing preferred stimuli in the routine living environment. 相似文献
179.
Computer-controlled display procedures useful for doing reading research are discussed. The procedures used in the present research vary the text unit size (from single words to half-sentences), the amount of context available (no context and varying amounts of prior text), text movement (centered words or successive left-to-right placement), and use of text highlighting (present, absent). The data suggest links between the display attributes and the subjects’ coding strategies during reading of mathematical word problems. Display attributes can influence the time course of processing, the subjectively coded unit size, and the nature of linguistic processing. The data also have implications for display attributes that may make reading in cyberspace more user friendly for both novice and expert readers. 相似文献
180.
Naive judges viewed brief, silent videotape excerpts or photographs of 18 men who had been classified as high or low in Machiavellianism. They were asked either to identify each stimulus person as high or low, or to choose from a list of trait adjectives those which best described each. Stimulus persons were identified accurately. The traits which were chosen to describe them were consistent with the characterizations of high and low Machiavellians in the research literature. Neither judgment appears to have been based on a single, observable aspect of the stimulus persons' appearance or behavior. It is concluded that practitioners of interpersonal strategies like Machiavellianism can communicate elaborate, self-serving impressions to others. 相似文献