Collective Efficacy as a Mediator of the Trustworthiness – Performance Relationship in Computer-Mediated Team-based Contexts

The current study investigated the role of trustworthiness perceptions at the individual level and collective efficacy at the team level on team performance in computer-mediated teams using multi-level structural equation modeling (MSEM). It was hypothesized that trustworthiness perceptions and collective efficacy would predict team performance, and collective efficacy would partially mediate the trustworthiness – performance relationship in computer-mediated teams. Sixty-four teams (five participants each) engaged in a computer-mediated task across two experimental sessions. Trustworthiness measured after session 1, collective efficacy measured after sessions 1 and 2, and team performance measured of sessions 1 and 2 were used to build the MSEM. The half longitudinal model for assessing mediation was used to examine the influence of trustworthiness perceptions on performance through collective efficacy over time. Results demonstrated support for the hypothesized model, such that trustworthiness perceptions demonstrated indirect effects on performance through collective efficacy. These findings extend past research by identifying an emergent mechanism by which trustworthiness is important for team performance in computer-mediated teams.     

victims and offenders: accounts of paybacks,invulnerability, and financial gain among homeless youth

In recent years, club-drug use among a segment of urban gay men has gained in popularity, contributing to a range of effects, including heightened sexual stimulation, increased sexual performance and endurance, but also, unsafe sexual practices, drug overdose, drug addiction and death. This article draws from a larger study of urban sexual careers and identifies two prominent forms of club-drug use: the first, to facilitate sexual performance; and the second, to facilitate community. The author argues that the basis of both patterns of drug use lie in adaptations to the institutional organization of urban gay sexual sociality.     

Parental Attachment,Family Communalism,and Racial Identity Among African American College Students

Parental attachment and familial communalism were examined as contributors to the racial identity of 165 African American college students. Students with secure attachments and high reports of communalism were in the later stage of their racial identity development, whereas students with insecure attachments and lacking communalism were in the earlier stages of their racial identity development. El apego parental y el comunalismo familiar se examinaron como contribuyentes a la identidad racial de 165 estudiantes universitarios afroamericanos. Los estudiantes con apegos seguros y alto índice de comunalismo se encontraban en la etapa avanzada del desarrollo de su identidad racial, mientras que los estudiantes con apegos inseguros y falta de comunalismo se encontraban en las etapas tempranas del desarrollo de su identidad racial.     

Infants Determine Others' Focus of Attention by Pragmatics and Exclusion

ABSTRACT

Children learning a verb may benefit from hearing it across situations . At the same time, in everyday contexts, situations in which a verb is heard will be interrupted by distracting events. Using Structural Alignment theory as a framework, Study 1 asks whether children can learn a verb when irrelevant, interleaved events are present. Two½- and 3½-year-old children saw dynamic events and were randomly assigned to one of three experimental conditions (differing in orders of events) or one of two control conditions. They extended the verbs in the experimental conditions, and not the control conditions. Three ½-year-olds were more successful than 2½-year-olds, though the younger children could extend verbs. A more difficult task is segmenting dynamic action into subevents that could be relevant for a verb (e.g., finding “chopping” in a cooking scene). In Study 2, 2½-, 3½-, and 4½-year-old children were assigned to experimental conditions in which relevant events flowed into irrelevant events (or vice versa) or to a control. Two½-year-olds failed to extend the verbs at test, differing from the older children; children in experimental conditions extended the verbs while children in the control condition did not. Altogether, these results show children can ignore irrelevant events (and subevents), and extend new verbs by 3½ years. Results are important to understand learning in everyday contexts in which verbs are heard in varied situations over time.     

Difficulties in emotion regulation are associated with panic symptom severity following a quit attempt among cannabis dependent veterans

Background and Objectives: Prior research suggests that difficulties in emotion regulation are associated with elevations in panic symptoms. The present study aimed to extend this work by prospectively examining the relation between difficulties in emotion regulation and panic symptoms over the course of a self-guided cannabis cessation attempt. Design and Method: One hundred and four cannabis-dependent military veterans participated in the study. Difficulties in emotion regulation and panic symptoms were assessed at baseline and at each week during a four-week cessation attempt for a total of five time-points. Results: Fewer difficulties in emotion regulation were associated with a greater reduction in panic symptoms during the self-guided cannabis cessation period. Results remained significant after statistically adjusting for mean substance use (i.e., cannabis, alcohol, and tobacco) during the study period. Conclusions: Results are discussed in terms of integrating adaptive emotion regulation skills training into existing evidence-based treatments for cannabis dependence.     

The Territories of Science and Religion

Journal of Religion and Health -     

Posttraumatic stress, difficulties in emotion regulation, and coping-oriented marijuana use

In an effort to better understand factors that may explain prior findings of a positive relation between posttraumatic stress symptom severity and coping-oriented marijuana use motivation, the present study tested whether the association between posttraumatic stress symptom severity and marijuana use coping motives is mediated by difficulties in emotion regulation. Participants were 79 (39 women; M(age) = 22.29 years, SD = 6.99) community-recruited adults who reported (1) lifetime exposure to at least one posttraumatic stress disorder Criterion A traumatic event and (2) marijuana use in the past 30 days. Results indicated that difficulties in emotion regulation, as indexed by the Difficulties in Emotion Regulation Scale (Gratz & Roemer, 2004), fully mediated the association between posttraumatic stress symptom severity and marijuana use coping motives. Implications for the treatment of co-occurring posttraumatic stress and marijuana use are discussed.     

View combination: a generalization mechanism for visual recognition

We examined whether view combination mechanisms shown to underlie object and scene recognition can integrate visual information across views that have little or no three-dimensional information at either the object or scene level. In three experiments, people learned four “views” of a two dimensional visual array derived from a three-dimensional scene. In Experiments 1 and 2, the stimuli were arrays of colored rectangles that preserved the relative sizes, distances, and angles among objects in the original scene, as well as the original occlusion relations. Participants recognized a novel central view more efficiently than any of the Trained views, which in turn were recognized more efficiently than equidistant novel views. Experiment 2 eliminated presentation frequency as an explanation for this effect. Experiment 3 used colored dots that preserved only identity and relative location information, which resulted in a weaker effect, though still one that was inconsistent with both part-based and normalization accounts of recognition. We argue that, for recognition processes to function so effectively with such minimalist stimuli, view combination must be a very general and fundamental mechanism, potentially enabling both visual recognition and categorization.     

Contrasting effects of feature-based statistics on the categorisation and basic-level identification of visual objects

Conceptual representations are at the heart of our mental lives, involved in every aspect of cognitive functioning. Despite their centrality, a long-standing debate persists as to how the meanings of concepts are represented and processed. Many accounts agree that the meanings of concrete concepts are represented by their individual features, but disagree about the importance of different feature-based variables: some views stress the importance of the information carried by distinctive features in conceptual processing, others the features which are shared over many concepts, and still others the extent to which features co-occur. We suggest that previously disparate theoretical positions and experimental findings can be unified by an account which claims that task demands determine how concepts are processed in addition to the effects of feature distinctiveness and co-occurrence. We tested these predictions in a basic-level naming task which relies on distinctive feature information (Experiment 1) and a domain decision task which relies on shared feature information (Experiment 2). Both used large-scale regression designs with the same visual objects, and mixed-effects models incorporating participant, session, stimulus-related and feature statistic variables to model the performance. We found that concepts with relatively more distinctive and more highly correlated distinctive relative to shared features facilitated basic-level naming latencies, while concepts with relatively more shared and more highly correlated shared relative to distinctive features speeded domain decisions. These findings demonstrate that the feature statistics of distinctiveness (shared vs. distinctive) and correlational strength, as well as the task demands, determine how concept meaning is processed in the conceptual system.     

Effort in the face of difference: Feeling like a non‐prototypical group member motivates effort

Three studies examined the relationship between individuals' perceived “prototypicality” in a group, their subsequent self‐presentation goals, and individual effort in that group. Consistent with the finding that feelings of marginal ingroup membership status elicit a desire to seek stronger social connections within ingroups, we predicted that non‐prototypical group members will have more salient self‐presentation goals than prototypical members, and as such will exert more individual effort to exhibit the value of their membership to the group. Correlational Study 1 confirmed that non‐prototypical group members may be more likely than prototypical members to volunteer for activities that would benefit their group. Two experimental studies were then conducted to test the causal influence of feelings of prototypicality while also identifying theoretically relevant moderating conditions of perceived task efficacy (Study 2) and public versus private task performance (Study 3). These findings suggest that effortful performance in groups is partly motivated by the desire to foster social ties. Copyright © 2012 John Wiley & Sons, Ltd.