Unpopularity and disliking among peers: Partially distinct dimensions of adolescents' social experiences

The paper examines whether unpopularity and disliking among peers are partially distinct dimensions of adolescents' negative social experience. We recruited 418 students (187 boys, 231 girls, M = 12.12 years, SD = 4.33) from an urban junior high school. These early adolescents completed a peer nomination inventory assessing aspects of their social relationships with peers (i.e., popularity, liking, unpopularity and disliking), reciprocated friendships and behavioral reputations with peers (i.e., relationally and overtly aggressive, relationally and overtly victimized, withdrawn and prosocial). The participants also completed self-report inventories assessing their feelings of loneliness and peer victimization. In addition, academic performance data was obtained directly from school records. Hierarchical regression analyses showed that unpopularity and disliking among peers were associated with different behaviors. Unpopularity was also associated with reports of loneliness, relational victimization and low numbers of reciprocated friends, whereas disliking was associated with low academic performance. These results highlight the importance of multidimensional conceptualizations of negative social experiences in early adolescence and the differential risks associated with unpopularity and disliking among peers.     

Once the money is in sight: Distinctive effects of conscious and unconscious rewards on task performance

Monetary rewards facilitate performance on behavioral and cognitive tasks, even when these rewards are perceived without conscious awareness. Also, recent research suggests that consciously (vs. unconsciously) perceived rewards may prompt people to more strongly concentrate on task stimuli and details. Here we propose that the latter is sometimes dysfunctional, in that it prevents improvements in task performance. We used an Attentional Blink paradigm, in which such enhanced concentration on task stimuli is detrimental to performance. Participants were consciously (supraliminally) or unconsciously (subliminally) exposed to a high-value or low-value coin that they could earn by performing well on an Attentional Blink trial. As hypothesized, high-value rewards increased performance when they were presented subliminally, while this performance benefit vanished when high-value rewards were presented consciously. We discuss this finding in the context of recent research on unconscious goal pursuit.     

Personality and the prediction of team performance

Although much is known about personality and individuals' job performance, only a few studies have considered the effects of team‐level personality on team performance. Existing research examining the effects of personality on team performance has found that, of the Big Five factors of personality, Conscientiousness is often the most important predictor. Accordingly, we investigated the criterion validity of lower‐level Conscientiousness traits to determine whether any one trait is particularly predictive of team performance. In addition to Conscientiousness, we examined the criterion validity of the other Big Five personality factors. We found that Conscientiousness and its facets predicted team performance. Agreeableness, Extraversion and Neuroticism were not predictive of team performance, whereas Openness had a modest negative relation with team performance. Copyright © 2010 John Wiley & Sons, Ltd.     

新药临床试验中的反安慰剂效应

新药在临床试验中设立安慰剂对照需要患者知情同意,有违安慰剂暗示治疗的本意。在一种新药Ⅱ期临床试验中,发现告知与隐瞒设立安慰剂对照的事实,疗效差异明显。表明告知患者可能使用到安慰剂,会产生反安慰剂效应,影响疗效判定。提出疗效判定尽量使用客观指标、采用叠加设计、采用暂时隐瞒法、心理医生介入等4项对策。     

触屏手机与传统键盘手机的可用性之比较

以24名大学生为测试对象,结合基于视频的用户绩效测试方法和问卷调查法,比较了测试对象使用触屏手机和传统键盘手机完成测试任务时的绩效及主观满意度。绩效测试的结果显示：在完成测试任务的时间和按键效率方面,两款手机在不同测试任务上各有优势;在按键敏感性方面,传统键盘手机在各项测试任务上均优于触屏手机。主观满意度评价的结果显示：在速度、按键效率Y2．易学性方面,被试认为传统键盘手机基本上都优于触屏手机;在舒适度、愉悦度和灵活性方面,选择购买触屏手机的被试认为触屏手机优于传统键盘手机,而选择传统键盘手机的被试认为两者没有显著差异。     

Role of face‐to‐face and computer‐mediated communication time in the cohesion and performance of mixed‐mode groups

Although the rapid development of information technology has led to the increasing use of computer‐mediated communication (CMC), few studies have examined the relational aspect of mixed‐mode groups that use both face‐to‐face (FTF) communication and CMC. A field study comprising 42 student groups was conducted to assess the relationships among communication time, cohesion, and performance in mixed‐mode groups. The findings suggest that time spent in FTF communication significantly predicted group social cohesion, but time spent in CMC did not. In contrast, group task cohesion was predicted by time spent in CMC but not by time spent in FTF communication. Time spent in CMC was also a strong predictor of group task performance. These results suggest that FTF communication contributes to the social aspect of mixed‐mode groups and that CMC is beneficial to their task‐related aspect. The findings of mediation analyses showed a significant indirect effect among time spent in FTF communication, group social cohesion, and group contextual performance. In other words, time spent in FTF communication had a positive effect on group social cohesion, which in turn positively affected group contextual performance. However, no mediating effect was found among time spent in CMC, group task cohesion, and group task performance. Theoretical and practical implications of these findings are discussed.     

Using the Interactive Systems Framework to Support a Quality Improvement Approach to Dissemination of Evidence-Based Strategies to Promote Early Detection of Breast Cancer: Planning a Comprehensive Dynamic Trial

Dissemination efforts must optimize interventions for new settings and populations. As such, dissemination research should incorporate principles of quality improvement. Comprehensive Dynamic Trial (CDT) designs examine how information gained during dissemination may be used to modify interventions and improve performance. Although CDT may offer distinct advantages over static designs, organizing the many necessary roles and activities is a significant challenge. In this article, we discuss use of the Interactive Systems Framework for Dissemination and Implementation to systematically implement a CDT. Specifically, we describe “Bronx ACCESS”, a program designed to disseminate evidence‐based strategies to promote adherence to mammography guidelines. In Bronx ACCESS, the Intervention Delivery System will elicit information needed to adapt strategies to specific settings and circumstances. The Intervention Synthesis and Translation System will use this information to test changes to strategies through “embedded experiments”. The Intervention Support System will build local capacities found to be necessary for intervention institutionalization. Simulation modeling will be used to integrate findings across systems. Results will inform on‐going policy debate about interventions needed to promote population‐level screening. More generally, this project is intended to advance understanding of research paradigms necessary to study dissemination. Special Issue: Advances in Bridging Research and Practice Using the Interactive System Framework for Dissemination and Implementation; Guest Editors: Abraham Wandersman, Paul Flaspohler, Catherine A. Lesesne, Richard Puddy; Action Editor: Emilie Phillips Smith