Salivary testosterone and self-report aggressive and pro-social personality characteristics in men and women

Measures of salivary testosterone and the personality dimensions of aggression and pro-social behavior were obtained in 306 (155 male and 151 female) university students. Each participant provided two samples of saliva and completed ten self-report personality scales from multiple inventories. A factor analysis of the personality scales produced two factors, an aggression factor and a pro-social behavior factor. Men averaged five times the amount of salivary testosterone as women (99 pg/ml vs. 18.5 pg/ml) and rated themselves as more aggressive and less nurturant. Within each sex, testosterone was positively correlated with aggression and negatively correlated with pro-social personality. Structural equation modelling analyses suggested that a direct effect model best described the relationship between salivary testosterone and the latent personality dimensions of aggression and pro-social behavior. © 1996 Wiley-Liss, Inc.     

P300 stimulus sequence effects in children and adults

Immediate memory capability for 12 children (8 years) and 12 adults (21 years) was assessed electrophysiologically by using P300 event-related brain potential (ERP) stimulus sequences. These were derived from an auditory discrimination paradigm in which participants detected target stimuli in a series of target (T) and standard (S) tones that were varied by randomly presenting one of four sequence patterns (SSSS, TTTT, TTTS, SSST). Short-term memory capability was assessed behaviorally by recall performance of a 20-word list. Children and adults showed virtually identical P300 amplitude sequence patterns, such that for both groups component size increased systematically as the discrepancy between standard and target stimuli increased across sequence patterns. P300 latency evinced similar, albeit weaker, stimulus sequence effects, with children having longer component peak latencies. Memory recall performance was substantially weaker for the children than for adult participants, especially for recency effects. The findings suggest that immediate memory for stimulus sequences is fully developed in young children, although long-term memory is not.     

Transforming psychological practice and society. Policies that reflect the new paradigm

As people with disabilities challenge psychology to acknowledge the sociopolitical foundations of their marginalization, they urge psychologists to help improve disability policy within and beyond the borders of the discipline. Understanding disability through a social paradigm offers opportunities to reframe the way psychologists define problems related to disability, to develop more collaborative relationships between psychologists and people with disabilities, and to adopt new professional responsibilities with respect to the disability community. The authors address the impact of the social paradigm on policies within psychology that guide consulting, advocacy, and training. The impact of national policy decisions, such as those associated with reimbursement, on practice and training is also discussed. Highlighted throughout are points of controversy prompted by new disability frameworks that remain open to illumination from the field.     

Expertise and the perception of kinematic and situational probability information

Two experiments were conducted on the nature of expert perception in the sport of squash. In the first experiment, ten expert and fifteen novice players attempted to predict the direction and force of squash strokes from either a film display (occluded at variable time periods before and after the opposing player had struck the ball) or a matched point-light display (containing only the basic kinematic features of the opponent's movement pattern). Experts out-performed the novices under both display conditions, and the same basic time windows that characterised expert and novice pick-up of information in the film task also persisted in the point-light task. This suggests that the experts' perceptual advantage is directly related to their superior pick-up of essential kinematic information. In the second experiment, the vision of six expert and six less skilled players was occluded by remotely triggered liquid-crystal spectacles at quasi-random intervals during simulated match play. Players were required to complete their current stroke even when the display was occluded and their prediction performance was assessed with respect to whether they moved to the correct half of the court to match the direction and depth of the opponent's stroke. Consistent with experiment 1, experts were found to be superior in their advance pick-up of both directional and depth information when the display was occluded during the opponent's hitting action. However, experts also remained better than chance, and clearly superior to less skilled players, in their prediction performance under conditions where occlusion occurred before any significant pre-contact preparatory movement by the opposing player was visible. This additional source of expert superiority is attributable to their superior attunement to the information contained in the situational probabilities and sequential dependences within their opponent's pattern of play.     

Educational Expectations and School Achievement of Urban African American Children

The mechanisms used to convey parents' and teachers' educational expectations for the academic achievement of low-income African American children were explored using data from the Chicago Longitudinal Study. A total of 712 children were studied. A model of mediated effects was used to test the processes of influence from parents' and teachers' expectations to sixth-grade outcomes. Children's perceptions of expectations were hypothesized to mediate the effect of expectations to school outcomes. Study findings revealed that these perceptions only partially mediated the effects of expectations to sixth-grade reading and math outcomes, yet added unique independent variance to these outcomes. Prior achievement emerged as a powerful mediator of the effects of early educational intervention and sociodemographic variables to sixth-grade outcomes. These findings suggest a need to further investigate the processes of communicating parent and teacher expectations.     

An Evaluation of the Job Stress Questionnaire with a Sample of Entrepreneurs

A modified version of Caplan's Job Stress Questionnaire (JSQ) was administered to 169 male and 56 female entrepreneurs. Entrepreneurs were found to have higher levels of stress associated with workload than with role ambiguity and underutilization of skills. Compared to scores reported previously for various occupational categories, the entrepreneurs scored significantly higher than did white collar, blue collar, and professional groups on the workload scale and significantly lower on scales measuring role ambiguity and under-utilization of skills. These results may be due to the nature of entrepreneurial activity, which is often characterized by heavy workloads, long hours, and a self-established role in the organization. Additionally, the factorial composition of the JSQ and its internal consistency were examined. Evidence of convergent and discriminant validity at the item and subscale level confirmed the a priori dimensions of the JSQ, although the internal consistency of the scales were low to moderate. The need for various improvements in the measurement of occupational stress is briefly discussed.     

Do negative implicit associations indicate negative attitudes? Social explanations moderate whether ostensible “negative” associations are prejudice-based or empathy-based

The present work challenges the idea that implicit evaluative associations with outgroups necessarily provide information about negative or prejudiced attitudes. We argue that the manner in which one explains outgroup status and action shapes whether one's implicit “negative” associations are prejudice-based or empathy-based. Four studies are consistent with this possibility. Study 1 suggests that whereas implicit “negative” associations are predictive of negative explicit attitudes among those who reject external explanations for African American status and action, such implicit “negativity” predicts positive explicit attitudes among those who endorse external explanations. Study 2 provides experimental evidence that the provision of external explanations results in the formation of implicit “negative” associations that are predictive of compassionate responding. Study 3 provides more direct support for the idea that implicit “negative” associations are empathy-based among external explainers by showing that such “negative” associations are positively correlated with a measure of dispositional empathy-proneness. Finally, Study 4 demonstrates that IAT “negativity” is associated with automatic activation of empathy-related associations among those who strongly endorse external explanations. Discussion centers on the importance of considering factors—such as social explanations—that may moderate whether implicit “negativity” is prejudice-based or empathy-based.     

Media, Empowerment and the ‘Sexualization of Culture’ Debates

Claims about ‘empowerment’ increasingly animate debates about the ‘sexualization of culture’. This article responds to Lamb and Peterson’s (2011) attempts to open up and complicate the notion of ‘sexual empowerment’ as it is used in relation to adolescent girls. Drawing on contemporary research from the UK, New Zealand and elsewhere, the article seeks to promote a dialogue between media and communications research and more psychologically oriented scholarship. The paper makes four arguments. First it points to the need to rethink conceptualizations of the media, and processes of media influence. Secondly it raises critical questions about the notion of ‘media literacy’ which has increasingly taken on the status of panacea in debates about young people and ‘sexualization’. Thirdly it highlights the curious absence of considerations of power in debates about sexual empowerment, and argues for the need to think about sexualization in relation to class, ‘race’, sexuality and other axes of oppression. Finally, it raises critical questions about the utility of the notion of sexual empowerment, given its individualistic framing, the developmentalism implicit in its use, and the difficulties in identifying it in cultures in which ‘empowerment’ is used to sell everything from liquid detergents to breast augmentation surgery.