The relation between ethnic group attachment and prosocial tendencies: The mediating role of cultural values

Studies suggest that Mexican–American youths who feel attached to their ethnic group engage in more prosocial behaviors. However, the psychological mechanisms that account for this association are not clear. Drawing on social identity and self‐categorization theories, we examined whether the association between ethnic group attachment and tendencies to engage in six distinct types of prosocial behaviors was mediated by familism and Mainstream American values among Mexican American youths. Ethnic group attachment, familism, Mainstream American values, and prosocial tendencies were assessed among 207 Mexican–American early adolescents using an interview format. Latent variable path models showed that ethnic group attachment was associated with greater tendencies to engage in compliant, emotional, dire, and anonymous helping, and that each of these associations was at least partially mediated by greater familism values. Mainstream American values were related to greater tendencies to engage in public prosocial behavior and less altruistic behavior, but did not mediate the associations between ethnic group attachment and prosocial tendencies. The theoretical and practical implications of these findings are addressed. Copyright © 2010 John Wiley & Sons, Ltd.     

Examining the factor structure of the Hare Self-Report Psychopathy Scale

The 64-item Hare Self-Report Psychopathy Scale (Hare SRP; Paulhus, Neumann, & Hare, in press ) is the most recent revision of the SRP, which has undergone numerous iterations. Little research has been conducted with this new edition; therefore, the goal of this study was to elucidate the factor structure as well as the criterion-related, convergent, and discriminant validity of the measure in a large sample of college students (N = 602). Confirmatory factor analyses revealed that the best fitting model was the original 4-factor model proposed by the authors of the Hare SRP (compared to a 1-factor, 2-factor, and 4-factor random model). The 4-factor model revealed superior fit for the data relative to the other alternative models. In addition, we elaborated on the psychometric properties of this 4-factor model in this sample. The Hare SRP total and factor scores evidenced good internal reliability as well as promising criterion-related, convergent, and discriminant validity in terms of predicting scores on conceptually relevant external criteria. Implications for theory and future research are discussed.     

THE EFFICACY OF WOMEN'S RESISTANCE STRATEGIES IN RAPE SITUATIONS

The effectiveness of women's resistance strategies for reducing the severity of sexual abuse and physical injury during sexual assaults was analyzed in a variety of assault circumstances. Data were obtained from police reports and court testimonies of 274 women (96% White, 4% Black) who either were raped or avoided rape by subsequently incarcerated violent stranger rapists. Statistical analyses showed that particular resistance strategies were effective in specific situations. Women who fought back forcefully were more likely to avoid rape than women who did not fight back, regardles of whether a waepon was present. Forceful fighting resistance was related to increased physical injury when a weapon was present, but most physical injury was caused by nonlethal weapons. Women who screamed or fled when confronted with weapons experienced less severe sexual abuse. Increased physical injury was associated with pleading, crying, or reasoning indoors. Women who used drugs or alcohol experienced more severe sexual abuse and physical injury.     

‘Please sort these voice recordings into 2 identities’: Effects of task instructions on performance in voice sorting studies

We investigated the effects of two types of task instructions on performance on a voice sorting task by listeners who were either familiar or unfamiliar with the voices. Listeners were asked to sort 15 naturally varying stimuli from two voice identities into perceived identities. Half of the listeners sorted the recordings freely into as many identities as they perceived; the other half were forced to sort stimuli into two identities only. As reported in previous studies, unfamiliar listeners formed more clusters than familiar listeners. Listeners therefore perceived different naturally varying stimuli from the same identity as coming from different identities, while being highly accurate at telling apart the stimuli from different voices. We further show that a change in task instructions – forcing listeners to sort stimuli into two identities only – helped unfamiliar listeners to overcome this selective failure at ‘telling people together’. This improvement, however, came at the cost of an increase in errors in telling people apart. For familiar listeners, similar non-significant trends were apparent. Therefore, even when informed about correct number of identities, listeners may fail to accurately perceive identity further highlighting that voice identity perception in the context of natural within-person variability is a challenging task. We discuss our results in terms of similarities and differences to findings in the face perception literature and their importance in applied settings, such as forensic voice identification.     

Mutual mother–pup vocal recognition in the highly colonial Cape fur seal: evidence of discrimination of calls with a high acoustic similarity

Animal Cognition - The Cape fur seal (Arctocephalus pusillus pusillus) is one of the most colonial mammal species in the world. Females exclusively nurse their pups for 9 to 11 months,...