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121.
122.
AbstractThis study assesses the relationship between friendship networks and academic performance among third graders from one school in Santiago, Chile. Longitudinal social network analysis (RSiena) was used to test whether friendship selection is driven by academic performance and if befriended peers tend to influence each other on their academic performance, including gender as a covariate. Results show a positive relationship between academic performance and number of friendship nominations received, and a higher probability of same-gender friendships. Students with higher academic achievement are more likely to be nominated as friends, especially by peers with lower academic achievement. These results suggest that elementary students value high performance as a desirable characteristic in their friends. 相似文献
123.
Michel Tremblay Christian Vandenberghe Olivier Doucet 《Journal of business and psychology》2013,28(2):233-249
Purpose
This research evaluates how reward and punishment behaviors are related to employee satisfaction, and how perceptions of justice mediate the effects of these behaviors. This study also seeks to examine the connection between some boundary conditions and the efficacy of reward and punishment behaviors.Design/Methodology/Approach
Data were collected using questionnaires, and hypotheses were tested using a sample of 3,065 managers from 41 business units.Findings
We found that contingent financial and social rewards were positively related to fairness and satisfaction, whereas punishment behaviors exert a negative influence. Findings reveal that high-trust propensity and low-pay level strengthen the positive influence of rewards on distributive justice, whereas high role ambiguity increases the positive effect of reward behaviors and the negative influence of non-contingent punishment (NCP) on superior satisfaction.Implications
This study provided evidence that using contingent rewards is more effective in promoting positive attitudes at work than using contingent punishments. Our findings add to the evidence that organizations would benefit from encouraging their managers to use financial and social rewards and reducing the administration of NCP among performing employees.Originality/Value
This study represents a first attempt to examine an integrated model of the effects of reward and punishment behaviors. It also contributes to this field by empirically evaluating the impact of individual and situational boundary conditions in the efficacy of these leader behaviors. 相似文献124.
125.
Patricia Weber Nadja Kozel Christian Purgstaller Reinhard Kargl Daniela Schwab Andreas Fink 《Brain and language》2013,124(1):22-33
This study explores oscillatory brain activity by means of event-related synchronization and desynchronization (%ERS/ERD) of EEG activity during the use of phonological and orthographic-morphological spelling strategies in L2 (English) and L1 (German) in native German speaking children. EEG was recorded while 33 children worked on a task requiring either phonological or orthographic-morphological spelling strategies. L2 processing elicited more theta %ERS than L1 processing (particularly at bilateral frontal and right posterior parietal sites) which might suggest a stronger involvement of semantic encoding and retrieval of the less familiar L2. The highest level of theta %ERS was revealed for the orthographic-morphological strategy in L2 which might indicate a more intense way of lexical retrieval compared to the phonological strategy in L2 and the orthographic-morphological strategy in L1. Analyses moreover revealed that phonological processing (both in L1 and L2) was associated with comparatively strong left-hemispheric %ERD in the upper alpha frequency band. 相似文献
126.
Aurélie Untas Nicole Rascle Laetitia Idier Catherine Lasseur Christian Combe 《Psychology & health》2013,28(7):753-766
This study investigated the effect of family relations on patients’ adjustment to dialysis. The two main aims were to develop a family typology, and to explore the influence of family profile on the patient's anxiety, depression and adherence to nutritional guidelines. The sample consisted of 120 patients (mean age 63 years; 67.5% of men). They completed several measures 1, 6 and 12 months after dialysis initiation. The scales used were the Family Relationship Index and the Hospital Anxiety and Depression Scale. Perceived adherence to nutritional guidelines was assessed using two visual analogical scales. Results showed that family relations remained stable over time. Cluster analysis yielded three family profiles, which were named conflict, communicative and supportive families. Patients belonging to conflict families perceived themselves as less adhering to nutritional guidelines. For these patients, anxiety and depressive moods increased significantly over time, whereas mental health remained stable over time for communicative and supportive families. This research underlines that family relations are essential in global consideration of the care of patients treated by dialysis. Conflict families seem especially at risk. They should be identified early to help them adapt to this stressful treatment. 相似文献
127.
This study examined the extent to which the anticipation of a manual action task influences whole-body postural planning and orientation. Our participants walked up to a drawer, opened the drawer, then grasped and moved an object in the drawer to another location in the same drawer. The starting placement of the object within the drawer and the final placement of the object in the drawer were varied across trials in either a blocked design (i.e., in trials where the same start and end location were repeated consecutively) or in a mixed fashion. Of primary interest was the posture adopted at the moment of grasping the drawer handle before pulling it out prior to the object manipulation task. Of secondary interest was whether there were sequential effects such that postures adopted in preceding trials influenced postures in subsequent trials. The results indicated that the spatial properties of the forthcoming object manipulation influenced both the postures adopted by the participants and the degree to which the drawer was opened, suggesting a prospective effect. In addition, the adopted postures were more consistent in blocked trials than in mixed trials, suggesting an additional retrospective effect. Overall, our findings suggest that motor planning occurs at the level of the whole body, and reflects both prospective and retrospective influences. 相似文献
128.
Catherine Marchanda Christian Vandenberghea 《Psychologie du Travail et des Organisations》2013,19(3):293-313
This study examines a model relating components of organizational commitment to positive and negative affect through the partial mediation of problem solving coping. The results of a study conducted among a sample of 647 employees from various organizations show that affective commitment relates positively to positive affect and negatively to negative affect, with the relation to positive affect being partially mediated by problem solving coping. Normative commitment was positively related to negative affect. Finally, continuance commitment based on few alternatives was negatively related to positive affect and positively related to negative affect, with the relation to positive affect being partially mediated by a weaker problem solving coping. Continuance commitment based on perceived sacrifice had no effects. 相似文献
129.
Organizations are frequently turning to social Internet applications in an effort to form bonds with consumers. However, little research has addressed the impact of social Internet consumption on the individual. Two studies of regular social Internet consumers (i.e., users of Facebook and socially connected online games) examined the effects of prompted usage reduction or cessation upon participants. In both studies, participants benefitted on average during the reduction/cessation period, reporting increased life satisfaction and decreased procrastination. The Facebooker versus gamer factor had remarkably few effects (i.e., results generalized across these two groups). Implications are discussed for both consumers and organizations involved in social Internet activities. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
130.
Nik Sultana Jasmin Christian Blanchette Lawrence C. Paulson 《Journal of Applied Logic》2013,11(1):91-102
Sledgehammer is a tool that harnesses external first-order automatic theorem provers (ATPs) to discharge interactive proof obligations arising in Isabelle/HOL. We extended it with LEO-II and Satallax, the two most prominent higher-order ATPs, improving its performance on higher-order problems. To explore their usefulness, these ATPs are measured against first-order ATPs and built-in Isabelle tactics on a variety of benchmarks from Isabelle and the TPTP library. Sledgehammer provides an ideal test bench for individual features of LEO-II and Satallax, revealing areas for improvements. 相似文献