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941.
Participation in formal organizations has been considered a marker of social capital, but informal interactions may also provide social-capital relevant benefits. The current studies (N = 252 undergraduates; 60 adult members of a service organization) assessed skills, outcomes, and social-structural perceptions that may be developed from organizational or informal participation. Results suggested that organizations serve as potential training grounds for diverse types of civic participation; individuals hone their leadership and public speaking skills within the structures provided by organized groups. On the other hand, informal interaction also contributed importantly to social capital formation by fostering negotiating skill, the sharing of opinions, and companionship, and by creating networks of mutual obligation.  相似文献   
942.
Matching methods such as nearest neighbor propensity score matching are increasingly popular techniques for controlling confounding in nonexperimental studies. However, simple k:1 matching methods, which select k well-matched comparison individuals for each treated individual, are sometimes criticized for being overly restrictive and discarding data (the unmatched comparison individuals). The authors illustrate the use of a more flexible method called full matching. Full matching makes use of all individuals in the data by forming a series of matched sets in which each set has either 1 treated individual and multiple comparison individuals or 1 comparison individual and multiple treated individuals. Full matching has been shown to be particularly effective at reducing bias due to observed confounding variables. The authors illustrate this approach using data from the Woodlawn Study, examining the relationship between adolescent marijuana use and adult outcomes.  相似文献   
943.
944.
In the field of teen pregnancy prevention many efficacious prevention programs are available but adoption of these programs is slow at the community level. In this article, we present a multi-site, capacity-building effort called the Promoting Science-based Approaches to Teen Pregnancy Prevention project (PSBA) as a case example of a proactive application of the Interactive System Framework (ISF) for dissemination and implementation. The ISF is a multi-system model leading to dissemination and implementation of science-based prevention programming through the work of three interactive systems: The "Prevention Delivery," "Prevention Support," and "Prevention Synthesis & Translation" Systems. This article describes the proactive use of the ISF to conceptualize and bolster the PSBA program's goal of assisting local prevention partners in the use of science-based approaches (SBA) to prevent teen pregnancy. PSBA uses all three systems of the ISF to facilitate practice improvements and offers valuable research opportunities to investigate factors related to dissemination and implementation processes across these systems. Describing our application of this framework highlights the feasibility of actively using the ISF to build prevention infrastructure and to guide large-scale prevention promotion strategies in the area of teen pregnancy prevention. The program's ongoing evaluation is presented as an example of early efforts to develop an evidence base around the ISF. Research implications are discussed.  相似文献   
945.
As the field of public health has increasingly recognized the social and behavioral aspects of the changing epidemiology of diseases and injuries, it has added social and behavioral scientists to the faculties of schools of public health and most federal and state public health agencies. Community psychology can play a crucial role in helping to bridge the dominant psychological theories with the family and community contexts in which individuals are conditioned and reinforced in their tendencies toward violent behavior. Public health asks of community psychology a helping hand in bridging the clinical endpoints of most NIH-sponsored behavioral research with the community endpoints of most CDC-sponsored programs such as injury control.  相似文献   
946.
Building on attribution and interdependence theories, two experiments tested the hypothesis that close friends of victims (third parties) are less forgiving than the victims themselves (first parties). In Experiment 1, individuals imagined a scenario in which either their romantic partner or the romantic partner of a close friend committed the identical relationship offense. Third parties were less forgiving than first parties, a phenomenon we termed the third-party forgiveness effect. This effect was mediated by attributions about the perpetrator's intentions and responsibility for the offense. In Experiment 2, first and third parties reported an actual offense and their subsequent unforgiving motivations. The third-party forgiveness effect was replicated and was mediated by commitment to the perpetrator. Perpetrator apology or amends to the victim increased third-party forgiveness. Future third-party research can expand interpersonal forgiveness research beyond the victim-perpetrator dyad.  相似文献   
947.
Lower delay discounting (better self-control) is linked to higher intelligence, but the basis of this relation is uncertain. To investigate the potential role of working memory (WM) processes, we assessed delay discounting, intelligence (g), WM (span tasks, 3-back task), and WM-related neural activity (using functional magnetic resonance imaging) in 103 healthy adults. Delay discounting was negatively correlated with g and WM. WM explained no variance in delay discounting beyond that explained by g, which suggests that processes through which WM relates to delay discounting are shared by g. WM-related neural activity in left anterior prefrontal cortex (Brodmann's area 10) covaried with g, r= .26, and delay discounting, r=-.40, and partially mediated the relation between g and delay discounting. Overall, the results suggest that delay discounting is associated with intelligence in part because of processes instantiated in anterior prefrontal cortex, a region known to support the integration of diverse information.  相似文献   
948.
There is now convincing evidence that an involuntary shift of spatial attention to a stimulus in one modality can affect the processing of stimuli in other modalities, but inconsistent findings across different paradigms have led to controversy. Such inconsistencies have important implications for theories of cross-modal attention. The authors investigated why orienting attention to a visual event sometimes influences responses to subsequent sounds and why it sometimes fails to do so. They examined visual-cue-on-auditory-target effects in two paradigms--implicit spatial discrimination (ISD) and orthogonal cuing (OC)--that have yielded conflicting findings in the past. Consistent with previous research, visual cues facilitated responses to same-side auditory targets in the ISD paradigm but not in the OC paradigm. Furthermore, in the ISD paradigm, visual cues facilitated responses to auditory targets only when the targets were presented directly at the cued location, not when they appeared above or below the cued location. This pattern of results confirms recent claims that visual cues fail to influence responses to auditory targets in the OC paradigm because the targets fall outside the focus of attention. (PsycINFO Database Record (c) 2008 APA, all rights reserved).  相似文献   
949.
950.
Changes in the organization of infant looking, facial expressions, and vocalizations were examined over age (4, 7, and 10 months) and with different social partners. Although infants at all ages accompanied smiling with looking at both mothers and unfamiliar partners, 7- and 10-month infants accompanied vocalization with looking only when they were with mothers. Seven- and 10-month-olds vocalized with unfamiliar partners only when they were smiling at the same time. When mothers stopped talking, infants reduced smiling significantly at all ages, yet vocalized more at 10 months. In the second half of the first year, there are fundamental changes in the coordination of infant expressive behaviors that reveal a keen attunement to variations in maternal behavior and the familiarity of social partners.  相似文献   
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