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181.
Observers were asked to detect a 20-msec segment of a sinusoidal signal masked by a band-limited white noise. A postsignal decrease in the spectrum level of the noise within the critical band of the signal enhanced the detectability of that signal if the decrease occurred within approximately 25 msec following signal termination. Postsignal decreases outside the critical band of the signal, and decreases within the critical band delayed longer than approximately 40 msec, reduced the detectability of the signal for decrease delays up to between approximately 150 and 400 msec, depending on the spectral characteristics of the decrease. Comparisons with typical backward masking results indicate probable common factors of short-term temporal summation and longer term attention.  相似文献   
182.
The major concerns of this research were to determine the prestige evaluations of selected industries by individuals representing diverse groups, and to compare the results with a previous study. Questionnaires were administered to five occupational subgroups (accountants, personnel managers, secretaries, electricians, security guards) and two university groups, one composed of white students, the other of black students. A total of 400 respondents indicated their prestige ratings of 30 industries in terms of a five-point scale. The major findings may be summarized as follows: (1) the industries were perceived to be arranged hierarchically as to prestige but many of the differences were not statistically significant; (2) various subgroups of the sample shared a closely similar evaluation pattern; and (3) industrial ratings had changed but little through time and did not vary significantly from one geographical area to another.  相似文献   
183.
Two peer evaluation measures, the Pupil Evaluation Inventory (PEI) and positive and negative nominations were compared in a sample of 260 children in grades 1 to 5. Stabilities of the measures were assessed over a 4-month period. In the total sample, PEI factors and negative nominations were more stable than positive nominations, and PEI Aggression and Withdrawal scores were more stable than negative nominations. PEI Aggression and Withdrawal scores were more stable in grades 3 and 5 than in grade 1, and the Likability factor was more stable in grades 2 to 5 than in grade 1. Negative nominations were most strongly correlated with the PEI Aggression factor, and positive nominations were more strongly correlated with Likability than with Aggression. Implications for the use of these nomination measures are discussed.During the writing of this report Charlotte Johnston was supported by a doctoral fellowship from the Social Sciences and Humanities Research Council of Canada. The authors wish to express appreciation to Dr. Edward Vertuno and to all the staff, teachers, and children of the Developmental Research School, Florida State University, whose cooperation made this research possible.  相似文献   
184.
It has often been suggested that Gestalt-like visual grouping processes may operate preattentively, but Mack and Rock (1998) suggested that no visual grouping takes place under "inattention." We introduced a new method to assess this. While participants performed a demanding change-detection task on a small matrix at fixation, task-irrelevant background elements were arranged by color sinilarity into columns, rows, or pseudorandomly. Independent of any change in the target matrix, background grouping could also change or remain the same on each trial. This influenced accuracy of change judgments for the central task, even though background grouping or its change usually could not be explicitly reported when probed with surprise questions as in Mack and Rock. This suggests that visual grouping may arise implicitly under inattention and provides a new method for testing the boundaries of this processing. Here we extended the initial result to changes in background grouping remote from the target and to those occurring across an intervening saccade.  相似文献   
185.
A sample of 422 female undergraduate students, attending a university-sector college in Wales specialising in teacher education and liberal arts subjects, completed the Myers-Briggs Type Indicator together with the Troldahl-Powell Dogmatism Scale. The data demonstrated that higher dogmatism scores are most clearly associated with sensing rather than intuition. Higher dogmatism scores are also associated with extraversion rather than introversion, and with judging rather than perceiving. No significant difference in dogmatism scores were found between thinking and feeling.  相似文献   
186.
Presents a social-cognitive model outlining the role of parental attributions for child behavior in parent–child interactions. Examples of studies providing evidence for the basic model are presented, with particular reference to applications of the model in families of children with Attention-Deficit/Hyperactivity Disorder (ADHD) and/or oppositional defiant/conduct disordered behavior. Parent or child factors that may moderate the operation of links within the model are suggested, and evidence of such moderator effects is presented. The conceptualization and measurement of parental attributions also are discussed. The limitations of the model and existing evidence, as well as recommendations for future research in this area are presented throughout the paper. The paper concludes with a summary of the clinical implications of the model and research on parental attributions with regards to improving interventions for families of children with attentional and disruptive behavior problems.  相似文献   
187.
Innovation is considered essential for today's organizations to survive and thrive. Researchers have also stressed the importance of leadership as a driver of followers' innovative work behavior (FIB). Yet, despite a large amount of research, three areas remain understudied: (a) The relative importance of different forms of leadership for FIB; (b) the mechanisms through which leadership impacts FIB; and (c) the degree to which relationships between leadership and FIB are generalizable across cultures. To address these lacunae, we propose an integrated model connecting four types of positive leadership behaviors, two types of identification (as mediating variables), and FIB. We tested our model in a global data set comprising responses of N = 7,225 participants from 23 countries, grouped into nine cultural clusters. Our results indicate that perceived LMX quality was the strongest relative predictor of FIB. Furthermore, the relationships between both perceived LMX quality and identity leadership with FIB were mediated by social identification. The indirect effect of LMX on FIB via social identification was stable across clusters, whereas the indirect effects of the other forms of leadership on FIB via social identification were stronger in countries high versus low on collectivism. Power distance did not influence the relations.  相似文献   
188.
Animal Cognition - In contemporary western cultures, most humans talk to their pet companions. Speech register addressed to companion animals shares common features with speech addressed to young...  相似文献   
189.
Chiu  Charlotte 《Sex roles》1998,38(7-8):521-537
A central paradox in studies of gender and jobsatisfaction is why women's job satisfaction is notlower than men's, given that women's jobs are ofteninferior. The explanation most commonly used is that women have lower expectations than men becausethey compare themselves to women while men comparethemselves to men. However, general studies maybemasking a gender difference in higher occupationallevels. The current study explores this possibility byanalyzing the 326 lawyers in the 1990 National Survey ofLawyers' Career Satisfaction. Of the women, 9% wereminorities, and of the men, 3%. It is found that women have significantly lower jobsatisfaction. Women's lower job satisfaction is dueprimarily to their lack of influence and promotionalopportunity. The results support the assertion thatprofessional women have the same expectations asprofessional men, not lower, but because of inequalityin opportunity, the women have lower jobsatisfaction.  相似文献   
190.
The concepts of differential prediction and multiple absolute prediction were developed in earlier papers [2, 3]. Methods for determining optimal distribution of testing time for each type of prediction are available [4, 5] and are appropriate for use provided that no altered time allotment approaches zero. In this article the methods developed in [4, 5] are extended to include cases where the altered time allotment for one or more tests may approach zero. The procedures developed are illustrated by numerical examples, after which the mathematical rationales are provided.  相似文献   
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