Ambient temperature and the occurrence of collective violence: a new analysis.

Prevalent folklore suggests that riots tend to occur during periods of very hot weather. Baron and Ransberger examined 102 major riots in the United States between 1967 and 1971 and concluded that the frequency of collective violence and ambient temperature are curvilinearly related. The present article points out that the Baron and Ransberger analysis did not take account of the different number of days in different temperature ranges. The artifact is eliminated, and the probability of a riot, conditional upon temperature, is estimated. When this is done, the evidence strongly suggests that the conditional probability of a riot increases monotonically with temperature. Some general implications of such data analyses are discussed.     

The relationship between the amount of face-to-face contact and partners' reports of domestic violence frequency

This investigation examines the relationship between partners' amount of face-to-face contact and partners' frequency of domestic violence. Men entering a domestic violence treatment program (N = 134) and their intimate partners were asked to complete the Conflict Tactics Scale (CTS) at the beginning of treatment and 12 months after treatment completion concerning partner violence during the previous year. Partners were also asked to identify days during the year before and the year after treatment during which they did not have face-to-face contact. Results indicated that at both baseline and 12-month posttreatment follow-up, the number of days of face-to-face contact was significantly related to verbal aggression and physical violence. However, after controlling for physical violence, the relationship between the number of days of face-to-face contact and verbal aggression was not significant; the relationship between the number of days of face-to-face contact and physical violence remained significant, even after controlling for verbal aggression.     

Interpersonal Violence,Depression, and Executive Function

This study considers links between the number of types of violence to which women have been exposed, depression, and executive functions (EFs). Substantial research has established EF deficits among depressed individuals as well as individuals exposed to trauma. Studies have also indicated a relationship between trauma exposure and depressive symptoms across a range of traumatic events, such as combat exposure, motor vehicle accidents, natural disasters, and assaults. This study examines this relationship in an ethnically diverse community sample of 93 women exposed to interpersonal violence who completed a battery of EF tasks that assessed processing speed, working memory, response inhibition, and set shifting. Women reported an average of 5.8 types of interpersonal violence events. The number of types of interpersonal violence events was significantly related to depressive symptoms, although not EF performance. Specific EFs, such as working memory and response inhibition, were positively related to depressive symptoms.     

Applicability of the social identity model of collective action in predicting support for interreligious violence in Indonesia

To what extent does religious identification promote collective efficacy and perceived injustice that contribute to explain support for interreligious violence in Indonesia? This overarching research question is inspired by theoretical insights starting from social identity theory, and noticeably enriched by collective action theories. We use high‐quality data of 1,995 randomly selected individuals (Muslims and Christians) from across the Indonesian archipelago to investigate the mediating effects of perceived injustice and collective efficacy on the relationship between religiosity and support for interreligious violence. We also improve upon previous research with an elaborate measure of religiosity (beliefs, practice, and salience). Our structural equation modelling analysis reveals that collective efficacy significantly mediates the relationship between the religiosity dimensions and support for interreligious violence. Moreover, on average, the Muslim community has a higher level of collective efficacy, as compared to the Christian community, which positively affects the relationship between most religiosity dimensions and support for interreligious violence. An interesting finding is that in the Christian community, salience is overall negatively related to collective efficacy, which then negatively affects support for interreligious violence. These results provide novel empirical insights on the role of religious identity in interreligious conflicts in the South Asian context, especially Indonesia.     

Psychophysiological correlates of the spontaneous K-complex.

A pilot study covering three nights and two studies were carried out to investigate the psychophysiological correlates of the spontaneous K-complex in relation to intense psychotherapy. The pilot study produced evidence that the K-complex was not consistent and stable within or across nights and that its variability might be sensitive to psycho-emotional influences. In the first major study 2 subjects were recorded non-consecutively over a 3-wk. period during experience of intensive therapy while in the second 6 subjects were studied before and after two therapeutic sessions. Results indicated that nights after therapy differed significantly from baseline nights and a significant interaction took place between subjects and therapy on one or more variables of the K-complex and several eye movement indices. Some relationship to length of time in therapy was also noted. These findings were interpreted to indicate a possible relationship between complete expression of feeling and the occurrence of phasic events in the sleeping EEG.     

War experiences and emerging rights claims in postwar former Yugoslavia: The role of generalized conflict exposure and collective anomie

Violent conflicts have often been observed to generate social environments in which human rights violations are more easily tolerated and legitimized. However, recent research has documented cases in which communities exposed to violence react with increased condemnations of human rights violations. In this article, we focus on the distinction between generalized and particularized violence. Our findings show that, in the postwar ex-Yugoslavia context, when local communities have been exposed to violence that was generalized across different ethno-national groups, they strongly condemn human rights violations. Multilevel structural equation models show that the relationship between generalized victimization and the condemnation of human rights violations is mediated by a collective sense of anomie. The processes that move from collective exposure to violence to the collective reaffirmation of human rights are more likely to unfold in communities where violence transcended group boundaries than in communities where particular groups were disproportionately affected by the violence.     

Inconsistent Condom Use and History of Trauma Among Vietnamese Female Sex Workers in a Chinese Border Region

Previous studies have indicated a potential association between trauma, such as physical violence, emotional violence and sexual violence, and high-risk sexual behavior. Female sex workers (FSWs) were interviewed to elicit history of traumatic events and sexual behaviors. Among 187 participants, 79 (42.2 %) inconsistently used condoms with clients in the past 30 days. Experiencing community violence (OR: 0.4; 95 % CI: 0.2, 0.8) was found to be significantly protective for inconsistent condom use. In this study, experiencing community violence was found to be protective for inconsistent condom use among FSWs, but none of the other trauma subgroups had significant associations with inconsistent condom use. Reasons for unprotected sex among FSW may be more related to economic or other contextual factors.     

Heat and Violence in the Dallas Field Data: Linearity,Curvilinearity, and Heteroscedasticity1

Harries and Stadler (1988) observed only a positive linear trend, with no curvilinear relationship, between heat and violence in their 1980–81 Dallas field data. When Cotton (1986) observed similar trends in his data, we noted that in fact the variance in violence increases with temperature (Bell & Fusco, 1986). We report here similar statistically significant heteroscedasticity in the Harries and Stadler data. We propose that both aggressive and escape tendencies increase with high ambient temperatures, such that in some circumstances aggression will decline under very hot and uncomfortable conditions. We conclude that the negative affect escape model of the temperature-aggression relationship is neither dead cold nor hot and bothered.     

Subjective Social Standing and Conflict Tactics Among Young Kenyan Men

Efforts to reduce intimate partner violence in sub‐Saharan Africa generally approach the issue through the lens of women's empowerment. These efforts include foci on women's relative power in the relationship, educational background, and earning potential. The social status of men has largely been ignored, reducing the potential to involve them in efforts to demote intimate partner violence. In this study we consider whether a man's perceived social status predicts conflict tactics, and whether these tactics are mediated by loneliness and collective self‐esteem from a community‐based sample in semi‐rural Kenya (n = 263). We find that men who reported lower perceived social status also reported significantly more frequent violent conflicts with their intimate partners. This association was significantly, and completely, mediated by lower collective self‐esteem and higher loneliness. There was no direct association between subjective social status and negotiation‐based conflict tactics, although there was an indirect association. Men with higher perceived social status reported higher collective self‐esteem, and men with higher collective self‐esteem reported more negotiation‐based conflict tactics. These findings inform efforts to reduce intimate partner violence by involving men, showing potential to reduce violence by building self‐esteem among men—particularly those with lower perceived social status.     

Role of collective self-esteem on youth violence in a collective culture

Youth violence involvement has always been the focus of significant research attention. However, as most of the studies on youth violence have been conducted in Western cultures, little is known about the antecedents of violence in the Asian context. Researchers have suggested that collectivism might be the reason for the lower violent crime rates in Asia. Nevertheless, the present study proposes an alternative approach to the collectivistic orientation and violence relationship: The possibility that allocentrism (collectivist tendency at the individual difference level) might shape the meaning of and the attitudes towards violence; thus not all aspects of a collectivist culture serve as deterrents for violence. Instead of viewing it as a random individual act, violence in a collective cultural context could be seen, under certain circumstances, as a social obligation to one's in-group (especially when one's in-group is supportive of violence) and as an internalization of the norms and values of the culture. Thus, the present study investigates the relationship between allocentrism and its relation to violence in a highly collectivist Asian culture, Singapore. We further hypothesized that collective self-esteem might serve as the mediator between allocentrism and the values of violence. Using a sample of 149 incarcerated Singaporean male adolescents, results support the proposed theoretical model whereby collective self-esteem was found to mediate between allocentrism and the culture's norms and attitudes of violence, which eventually lead to physical violence behaviours.     

Gender differences in the sensitivity to posttraumatic stress disorder: An epidemiological study of urban young adults

The authors examine the relationship between 2 separate but interrelated findings in the epidemiology of posttraumatic stress disorder (PTSD): women's greater PTSD risk following traumatic events and the sensitizing effects of a prior trauma on the PTSD response to a subsequent trauma. Data come from a representative sample of 1,698 young adults from a large U.S. city. Analysis was conducted on the subset exposed to traumatic events. Women's risk for PTSD following assaultive violence was higher than men's. When assaultive violence preceded a later nonassaultive trauma in women, there was an increased risk (relative risk = 4.9) for PTSD, which was not observed in men. The relative risk estimate in women was significantly higher than in men. These findings suggest that assaultive violence elicits women's PTSD response directly and by sensitizing them to the effects of subsequent traumatic events of lesser magnitude.     

Ambient Temperature and Violent Crime1

Baron and Ransberger (1978) argue that civil violence increases as temperature rises into the mid 80s, and then decreases as temperatures rise further. Two experiments test this hypothesis using data on temperature and the incidence of crime for summer months in two midwestern cities. The crime data were divided into violent and nonviolent crimes, and then correlated with the maximum, minimum, and average temperatures, and several humidity measures. Violent crime correlated significantly with temperature; nonviolent crime did not. This relationship was linear in the first study, but curvilinear in the second. Inspection of the data suggests that the incidence of aggressive behavior (i.e., violent crime) does not drop off in the mid-80s as laboratory findings and Baron and Ransberger's results would suggest, but continues to increase as temperatures rise into the 90s. The mean incidence of violent crime was higher for days in the 90s than for days in the 80s. A hypothesis for resolving this contradiction between real world and laboratory findings is discussed.     

Between Remembering and Forgetting the Years of Political Violence: Psychosocial Impact of the Truth and Reconciliation Commission in Peru

This article analyzes the association between knowledge of the Truth and Reconciliation Commission (TRC), evaluation of TRC's achievements, experience of victimization, attitudes toward remembering and forgetting past political violence, perceptions of socioemotional climate (SEC), belief in forgiveness and attitudes toward violence in Peru based on a study conducted in three Peruvian cities with different rates of victimization due to political violence during 1980–2000 (n = 1200). Results showed that a positive attitude toward remembering the past of political violence was predominant and related to a positive evaluation of TRC's achievements. Attitude toward remembering also has an ambivalent collective effect increasing both positive and negative SECs, and it is less accepted by victims of political violence. On the other hand, attitude toward forgetting is less accepted by participants, and it also has an ambivalent effect by increasing positive and negative SECs. Attitude toward forgetting has more societal costs, since it is related to attitudes toward violence and decreased knowledge and a positive evaluation of TRC. In general, findings suggest that remembering traumatic events has an emotional cost, but also it is shown that remembering seems to be more beneficial for society in the long‐term than forgetting.     

National Days,National Identity,and Collective Memory: Exploring the Impact of Holocaust Day in Israel

This study uses the case of Holocaust Day in Israel to examine the premise that national days impact national identity and collective memory. Specifically, the study examines whether a very unique type of national day—Holocaust Day—impacts national identification, nationalism, and collective memory in the form of Israeli Jews' perceptions of the “lessons” of the Holocaust. This study uses panel survey design data on national identity and perceptions of the Holocaust's lessons from the same sample of Israeli Jews (N = 665) collected two months prior to Holocaust Day and again during and after Holocaust Day. During and after Holocaust Day, respondents expressed increased levels of nationalism and more perceptions of both particularistic and universalistic Holocaust lessons. Participation in Holocaust Day practices had a stronger relationship with nationalism and national identification during Holocaust Day than before but a weaker relationship with the perception of a universalistic lesson during Holocaust Day. These findings indicate that Holocaust Day impacts national identity and collective memory and highlights the multifaceted nature of the relationships between national identity, collective memory, and national days. The theoretical implication of the findings as well as the case comparability are discussed in light of the findings.     

Repetitive Intimate Partner Victimization: An Exploratory Application of Social Learning Theory

The research literature on intimate partner violence (IPV) has documented a number of poignant facts that serve as the foundation for this study. First, IPV is prevalent, frequent, and often repetitive. Moreover, repetitive violence within an intimate relationship tends to escalate over time, both in its frequency of occurrence and in its severity. We also know that decisions to leave the relationship do not guarantee that the violence will end. In addition, the phenomenon of “mutual combatancy,” prevalent in many intimate partner relationships, suggests that both parties in this dyadic process co-share the roles of offender and victim. Finally, we know that targets of IPV, like their abusers, tend to disproportionately come from families-of-origin in which violence and aggression were directly and/or vicariously experienced. These facts suggest that one possible starting point for the exploration of repetitive intimate partner victimization (R-IPV) may derive from an inter-generational transmission, or cycle of violence theory, suggested more formally in social learning approaches to criminal and deviant behaviors. The present study examines the extent to which measures of Akers' social learning constructs are able to predict repetitive intimate partner victimization. Self-report data on intimate partner violence among a sample of college students reveal the social learning theory variables, differential association and differential reinforcement in particular, are able to predict both the prevalence and frequency of predict repetitive intimate partner victimization.     

Impact of Exposure to Community Violence on Anxiety: A Longitudinal Study of Family Social Support as a Protective Factor for Urban Children

In a longitudinal study, we examined the relationship between exposure to community violence and anxiety, and the extent to which family social support moderated this relationship within a predominantly African American sample of 385 children in an urban public school system. Children reported notably lower anxiety levels compared to normative data for African American children. A high percentage reported witnessing a variety of violent acts. Cross-sectional results indicated that among girls exposure to violence was significantly correlated with total, physiological, and concentration anxiety. Among boys violence exposure was not associated with anxiety. Hierarchical regression analyses indicated that after controlling for gender, exposure to violence at Time 1 did not significantly predict changes in anxiety. A significant interaction was found for gender and exposure to violence on concentration anxiety; girls who reported higher initial violence exposure reported greater increases in subsequent concentration anxiety than boys. Whereas findings from our study did not support a moderating relationship of family social support on children's exposure to violence and anxiety, a strong negative relationship was found between anxiety and family support. Among children with initially low worry anxiety, those with low family social support showed greater increases in subsequent worry anxiety.     

Childhood Exposure to Community and Domestic Violence: Prevalence,Risk Factors and Posttraumatic Outcomes in a South African Student Sample

The effects of exposure to direct and vicarious community and domestic violence on the posttraumatic adjustment of 323 South African students were examined. Data were collected using self-administered questionnaires, with the relationship between exposure to violence and posttraumatic outcomes being explored using binomial logistic regression analyses. Two hundred and sixty-two participants (81 %) reported that they had been exposed to some form of interpersonal violence during childhood. An analysis of risk factors for exposure to violence indicated that males were more than twice as likely as females to have experienced victimization by a community member. Direct exposure to domestic violence was the only form of violence which was found to be associated with Posttraumatic Stress Disorder (PTSD). Among participants who had experienced direct domestic violence, clinically significant levels of PTSD were significantly predicted by both gender (being female) and by abuse chronicity.     

Components of "authority" as determinants of compliance.

This study investigated factors affecting compliance, to orders from a formal authority. The design created a two-level status hierarchy in which subjects occupied identical low-status positions and responded to demands from a simulated high-status leader. Four components of authority-normativity,coervice power, collective justification, and success-failure-were manipulated as independent variables. Another component, the endorsement accorded the leader, was included in the design as a measured variable. Results indicated that compliance increased significantly when coervice power was high (rather than low), when justification was collective (rather than partisan), and when demands were normative (rather than counternormative). Contary ti the theoretical expectation, endorsement did not affect compliance by low-status members. The findings show that the normative aspect of legitimacy serves as a compliance-gaining base even when stripped of enforcing sanctions and under-lying goals and that the distinction between normativity and endorsement is valid for research on social power.     

Striking Differences: The Impact of Moderate and High Trauma on Reading Achievement

This study explored the relationship between childhood traumatic exposure, such as violence and loss of a significant other, and reading achievement. With a sample of 163 urban elementary children (grades 2–5), the impact of traumatic events on 3 years of reading scores was examined. Results suggested that violence exposure had an adverse effect on reading scores and that there was a striking difference between students who experienced moderate exposure as compared to students with high exposure. However, both groups of students experienced a significant decrease in reading achievement. Discussion of these findings proposes an explanation for why reading achievement might be adversely affected by traumatic exposure and gives suggestions for teachers to utilize with those students identified as having been exposed to traumatic events.