Incremental Validity of Coping-oriented Marijuana Use Motives in the Prediction of Affect-based Psychological Vulnerability

The present investigation examined whether coping-oriented motives to use marijuana, as measured by the Marijuana Motives Measure (MMM; Simons et al. in J. Couns. Psychol. 45:265–273, 1998), were uniquely related to affect-based psychological vulnerability factors among marijuana users. Participants were 131 adult current marijuana users (72 women, M _age = 20.14, SD = 3.37 years). As hypothesized, after controlling for gender, cigarettes smoked per day, past 30-day marijuana use, total years of marijuana use, and alcohol consumption, coping motives were significantly and incrementally related to negative affect-based psychological vulnerability factors. No other marijuana use motives demonstrated a similar type of relationship to the dependent variables, providing a high degree of explanatory specificity. These data suggest that coping-oriented motives to use marijuana may be an important explanatory construct in better understanding marijuana and psychological vulnerability relations.     

不同动机网络使用者对网络使用线索的注意偏向

以29名信息获取性动机者和21名人际情感性动机者为被试,采用情绪Stroop范式,以网络信息获取线索、网络情感满足线索、一般负性情绪线索和中性线索为刺激材料,考察了不同网络使用动机者对网络相关线索和负性情绪线索的注意加工特性。结果发现,基于信息获取性动机的网络使用者对网络信息获取线索具有显著的注意偏向,而基于人际情感性动机的网络使用者对网络情感满足线索或负性情绪线索具有显著的注意偏向。该研究为解释网络相关线索和负性情绪线索诱发不同动机者上网欲望的认知机制提供了实验证据。     

Impact of a comprehensive safety program on bicycle helmet use among middle-school children

A bicycle helmet program was evaluated in three middle schools using a multiple baseline across schools design. Two of the three schools had histories of enforcement of helmet use. During baseline many students riding their bikes to and from school did not wear their helmets or wore them incorrectly. A program that consisted of peer data collection of correct helmet use, education on how to wear a bicycle helmet correctly, peer goal setting, public posting of the percentage of correct helmet use, and shared reinforcers, all of which were implemented by the school resource officer, increased afternoon helmet use and afternoon correct helmet use in all three schools. Probe data collected a distance from all three schools indicated that students did not remove their helmets once they were no longer in close proximity to the school, and probe data collected in the morning at two of the schools showed that the behavior change transferred to the morning.     

Metaphor explanation attenuates the right-hand preference for depictive co-speech gestures that imitate actions

Differential activation levels of the two hemispheres due to hemispheric specialization for various linguistic processes might determine hand choice for co-speech gestures. To test this hypothesis, we compared hand choices for gesturing in 20 healthy right-handed participants during explanation of metaphorical vs. non-metaphorical meanings, on the assumption that metaphor explanation enhances the right hemisphere contribution to speech production. Hand choices were analyzed separately for: depictive gestures that imitate action ("character viewpoint gestures," [McNeill, D. (1992). Hand and mind. What gestures reveal about thought. Chicago: University of Chicago Press.]), depictive gestures that express motion, relative locations, and shape ("observer viewpoint gestures"), and "abstract deictic gestures." It was found that the right-hand over left-hand preference was significantly weaker in the metaphor condition than in the non-metaphor conditions for depictive gestures that imitated action. Findings suggest that the activation of the right hemisphere in the metaphor condition reduces the likelihood of left hemisphere generation of gestures that imitate action, thus attenuating the right-hand preference.     

Binge drinking and violence against dating partners: the mediating effect of antisocial traits and behaviors in a multinational perspective

Research has consistently shown a link between alcohol use and partner violence (PV). Little is known concerning the strength of this association across cultures and genders, and few have assessed possible mediators. This study assesses the link between binge drinking and PV among 7,921 college students in 38 sites around the world, and investigates the mediating role of antisocial traits and behaviors (ASTB). A significant association was found between binge drinking and PV, the strength of which differed by site but not by gender. ASTB fully mediated this association. The mean level of binge drinking at each site did not significantly influence the strength of the association between binge drinking and PV.     

Religious and National Identity after the Belfast Good Friday Agreement

National and religious identification processes can be seen as the basis of the conflict in Northern Ireland, and over the course of the conflict preferred social and political identities became increasingly oppositional and entrenched. This paper reviews this evidence using population-level studies of self-categorized national and religious identity. In an attempt to explore the bases of these identities, two interrelated qualitative studies examining the constructions of national and religious identification are reported. The findings presented suggest the continuing predominance of national and religious identities that have generally been constructed as opposing. Evidence of complete overlap of the identities is evidenced in conflation of religion and nationality in adolescents' essays. Theoretical sampling of adults living on the border between Northern Ireland, the republic of Ireland, and those in mixed marriages highlight the strategic use of national and religious identities that may act to support divisions in post-Agreement Northern Ireland.     

A Systematic Review of the Relationship between High School Dropout and Substance Use

A systematic review of peer-reviewed, empirical literature published between 1990 and 2006 was undertaken to determine whether existing research could provide evidence, and a deeper understanding of the relationship between dropping out of high school and the use of substances such as tobacco, alcohol, cannabis/marijuana and other illicit drugs. Forty-six articles were reviewed. The review describes the heterogeneity of theoretical frameworks employed, as well as the limited ability of any one to adequately explain the relationship between high school dropout and substance use. A refinement of the many confounding and mediating variables into coherent conceptual categories would aid more robust theory building and theory integration. In spite of differences in dropout definitions and diverse measures of substance use across studies, the main findings point to a largely consistent relationship between dropping out of high school and substance use. However, socially disadvantaged and poor persons, dropouts, and drug users are over-represented in some of the loss to follow-up groups in longitudinal studies surveyed. More rigorous mechanisms to retain participants in longitudinal studies should be employed. Suggestions for future research include comparisons between urban and rural populations, employing qualitative research methods, and research in developing countries, which have the least favourable school outcomes and a dearth of research on high school dropout.

网络使用线索对不同动机使用者上网欲望的诱发作用

以67名信息获取性动机者和54名人际情感性动机者为被试,以基于实景照片的网络信息获取线索、网络情感满足线索和负性情绪线索为刺激材料,采用线索暴露范式探讨了网络使用线索对网络使用者上网欲望的相对影响。实验结果表明,网络信息获取线索仅对信息获取性动机者的上网欲望具有显著的诱发作用,而情感满足线索和负性情绪线索仅对人际情感性动机者的上网欲望具有显著的诱发作用。该研究为解释人际情感性动机者的病理性互联网使用行为特征提供了实验证据。     

压力性生活事件对工读生毒品使用影响：有中介的调节效应

考察家庭功能对压力性生活事件与工读生毒品使用之间关系的调节效应以及领悟社会支持对此调节效应是否具有中介效应。采用压力性生活事件量表、家庭功能评定问卷、领悟社会支持问卷、毒品使用问卷对514名工读生进行研究。结果表明：（1）家庭功能对压力性生活事件与工读生毒品使用之间关系具有调节效应;（2）这种调节效应以领悟社会支持为中介变量。压力性生活事件对工读生毒品使用的影响是有中介的调节效应。     

大学生网络使用与网络利他行为:网络使用自我效能和性别的作用

以湖北省武汉市两所大学的562名大学生为被试,采用网络利他行为问卷、网络自我效能感问卷和网络使用行为问卷对其进行问卷调查。考察网络使用自我效能在网络使用和网络利他行为之间的中介作用及该中介作用是否受到性别的调节。结果发现:(1)男生在网络利他行为和网络使用自我效能上均显著高于女生;男生在网络游戏、网络信息的使用上显著高于女生,男女生在网络社交上不存在显著差异;(2)网络使用(网络社交、网络信息、网络游戏)与网络使用自我效能、网络利他行为均呈显著正相关,网络使用自我效能与网络利他行为呈显著正相关;(3)网络使用自我效能在网络使用和网络利他行为的关系中具有中介作用,性别在网络使用与网络使用自我效能之间具有调节作用,相对于女生,网络使用自我效能的中介效应在男生群体中更为显著。