Instigating and measuring interpersonal aggression and hostility: A methodological contribution

Two experiments were conducted, employing a 2 × 2 factorial design, to assess both 1)a relatively controlled procedure for instigating aggressive inclinations and 2) a way of measuring interpersonal aggression that is much more subtle than most of the laboratory procedures now being used. In both of these experiments half of the subjects were provoked by exposing them to a self-esteem-threatening evaluation ostensibly from a peer. After this “treatment,” in experiment 1 all of the subjects had an opportunity to deliver electric shocks to the supposed other student, much as in many of the laboratory experiments in this area, and then rate that student. Shock intensity was not significantly correlated with the unfavorableness of these latter ratings, as if the subjects had reacted in different ways to the shocks they had delivered. In experiment 2, after the instigating treatment the subjects were allowed to withhold rewards from the other person whenever he made correct guesses on a supposed “ESP task.” In this procedure the behavioral hostility (withholding rewards) was positively correlated with the unfavorableness of the subsequent questionnaire ratings, apparently because the subjects were not fully aware of having expressed hostility.     

Applicability of olweu' aggression inventory in a sample of chinese primary school children

A sample of Chinese children in Grade 4 (155 boys and 135 girls with an average age of 10.3 years) completed Olweu' Aggression Inventory, an instrument developed for the assessment of aggressive and aggression controlling behavior tendencies in a Western culture. Results indicated that the questionnaire gave quite meaningful information when used with the Chinese children. Two interpretable factors, general aggression and aggression control, were derived; the pattern of factor loadings was essentially the same for boys and girls. The internal consistency reliabilities of the two factor scales were in the 0.80s and 0.70s, respectively. Overall, the findings indicated that there were distinct measurable individual differences among Chinese children in the domain of aggression—in spite of strong societal pressures against aggressive behavior and towards aggression control. However, some results suggested that aggression was a somewhat more global, or less differentiated, phenomenon for the Chinese as compared with the Swedish children. The two main factor scales were related meaningfully to other self report dimensions such as positive attitude to school and negative relations with parents. In all probability, the pattern of findings gave a valid picture of the behavior and attitudes of the Chinese children: By and large they were nonaggressive, well-behaved, ambitious, friendly, prosocial, and exerted strong control over aggressive feelings and behavior tendencies. In possible conflicts with adults, they were likely to take a humble and submissive attitude. These findings agree well with the impressions of Western observers and with what can be expected on the basis of the typical socialization patterns found in the People's Republic of China. Furthermore, quite marked sex differences in aggression were obtained and a partial correlation analysis showed that the higher aggression level of the boys could only to a very limited degree be explained by their lower level of aggression control or inhibitions. Generally, the sex differences in aggression were interpreted to reflect genetic variations in basic predispositions in boys and girls that had been subtly enlarged by more or less clear, sex-linked differences in environmental conditions.     

Sex,race, and experiences of aggression

Most previous research on sex differences in experienced aggression has confounded the sex of the aggressor and of the target by considering married or dating couples. In the present study, black and white male and female college students were asked about specific acts of aggression which they had received from or directed toward a male or female. As predicted, males were likely to have both received and exhibited more forms of aggressive behavior, although females were somewhat more likely to have been honked at, to have been forced by a male to have sex, and to have slapped someone. Few racial differences were found, but it appeared that blacks might have been relatively more likely to exhibit physical aggression and whites to exhibit nonphysical aggression. Some differences were found in specific behaviors directed toward and received from males and females, but in general subjects said that they received more aggressive behaviors than they directed toward others. © 1992 Wiley-Liss, Inc.     

Comparison of two aggression inventories

Two recently developed questionnaire measures of aggression, the Aggression Questionnaire [Buss and Perry (1992; Journal of Personality and Social Psychology 63:452–459]; and the Aggression Inventory [Gladue (1991a); Psychological Reports 68:675–684], were administered to a British sample (N=320) of men and women undergraduates. Both questionnaires contain subscales measuring physical and verbal aggression; the other scales of the Aggression Questionnaire measure anger and hostility, and those of the Aggression Inventory measure impulsiveness and avoidance of aggression. The factor structure of scales were assessed using confirmatory factor analysis. The interrelations of the subscales were calculated in both cases: anger was independently related to verbal and physical aggression and to hostility on the Aggression Questionnaire; impulsivity, and verbal and physical aggression were associated on the Aggression Inventory. Sex differences were largest on the two physical subscales, of lesser magnitude but still significantly different for the two verbal subscales, but absent for anger and hostility. This supports the hypothesis that sex differences in aggression are larger for more escalated forms of aggression. The physical and verbal subscales of the two questionnaires were each highly correlated with one another and the impulsive subscale of the Aggression Inventory highly correlated with the anger subscale of the Aggresion Questionnaire. Thus, two aggression questionnaires developed in the US not only produce similar associations between subscales and sex differences among a British undergraduate sample, but also show high correlations between their respective scales. © 1995 Wiley-Liss, Inc.     

Cooperative social coordination and aggression: Sex and strain differences in the effects of housing on gonadectomized rats with hormone replacement

Laboratory rats were used to investigate sex and strain differences in the effects of aggression on a cooperative behavior in which pairs learn to coordinate shuttling in a rectangular chamber. The level of aggression was manipulated by comparing males and females of the aggressive S3 strain and a less aggressive Sprague-Dawley-derived strain and by housing same-sex partners either together or individually (eight groups, n = 7 pairs per group). Hormone levels were stabilized by gonadectomy and daily injections of the appropriate sex hormone. The only serious coordination deficits were in individually housed males, associated with violent fighting and an extreme dominance/subordinance relationship that was not observed in females. All other groups readily learned and performed the coordination, with evidence that low and moderate levels of aggression could facilitate coordination by evoking species-typical behaviors that increased proximity, synchrony, and differentiation within pairs. The discussion focused on models of affiliative behavior in the study of aggression and the compatibility between moderate levels of aggression and cooperation.     

Children's Perception of Parental Empathy as a Precursor of Children's Empathy in Middle and Late Childhood

The present study investigated the relationship between children's self-concepts and evaluations of parent figures. The subjects were elementary school children (352 males and 280 females; Grades 5 through 10) who came from intact families, divorced families, or families in which one or both parents had died. Significant relationships were obtained between children's self-concept ratings and their evaluations of their natural father and mother for both intact and divorced families. This relationship was not significant, however, for families in which a parent had died. Furthermore, children's self-ratings were not significantly correlated with their evaluations of stepparents.     

The aggression test as a possible taxonomic tool in the Formica rufa group

The intra- and interspecific aggressive behavior of Formica polyctena, a species of the Formica rufa group, was analyzed and quantified both in the laboratory and in the field. This behavior was used as a potential taxonomic tool for gaining a better understanding of the phyletic relationships among the species within the group. No overt aggression was recorded toward members of the same species. To examine interspecific relationships, F. polyctena was first confronted with F. cunicularia, to ascertain its aggressiveness toward a distantly related species. All such encounters led immediately to overt and prolonged attacks with virtually no initial mutual inspection. This suggests that recognition of strangeness of the unrelated species is almost immediate in F. polyctena, as previously observed in F. lugubris and F. rufa toward the same antagonist. Subsequently, F. polyctena was contrasted with F. lugubris and F. rufa (also belonging to the F. rufa group) in order to compare these related species. Fierce attacks accompanied by all the elements of conflict behavior were observed in all encounters. Moreover, the degree of aggression in the field was higher than in laboratory-paired ants, possibly because of a territorial effect. These data and our previous and similar research indicate that the relationships between F. lugubris and F. rufa are closer than between these two species and F. polyctena. In considering different viewpoints on this problem, the validity of the aggression test is discussed and the opportunity to compare levels of aggressiveness among strictly sympatric samples of red wood ant species gathered from the same ecological environment are considered.     

Anger and aggression during role-playing: Gender differences between hormonally treated male and female transsexuals and controls

A role-playing study on anger was conducted in order to identify the influence of sex hormones on individual and gender differences in irritation, anger arousal, and aggression. Different groups were studied: female-to-male and male-to-female transsexuals, with either group tested after 3 months of cross-sex hormone treatment, and untreated control women and men. All subjects were exposed to a 35-min videotape of an individual tested in an aversive, physically stressful, and frustrating situation in the laboratory. While watching, subjects were asked to imagine being in the same situation. Meanwhile, cardiovascular responses were registered and the intensity of moods and aggressive behaviour were assessed. Apart from a clear effect upon cardiovascular arousal and anger-related moods, there were also some interesting differences between the four groups, the most interesting one being a stronger aggressive response in the female-to-male transsexuals. Furthermore, interesting information was gathered with respect to the issue of whether role-playing and actual experimentation provide valid tests of anger and aggression in real life. © 1995 Wiley-Liss, Inc.     

Outline of a denotative definition of aggression

Aggression is defined as generic assertiveness which includes both constructive and destructive behaviors. An attempt is then made to classify the distinctive operational settings (phenotypic situations) which trigger aggression. The classes of such settings are: 1) privation - the frustration of vital needs and the frustration due to inner conflict of needs; 2) conflict (social) - situation-specific competition and intragroup rivalry for dominance; and 3) victimization — predator-prey relations and vandalism per se. Critical questions which emerge from the definition and classification are posed.     

When aggression seems justified: Judging intergroup conflict from a distance

This research delineates several factors that may affect how likely observers are to view intergroup aggression as justified. Subjects who favored one side or the other, as well as nominally neutral subjects, rated fictional scenarios depicting an aggressive action by either Israeli or Palestinian armed forces. As hypothesized, rated justification varied with the interaction of an observer's perspective and the relative power of the aggressor and the target, and with the interaction of perspective and the outcome of an action. Also as predicted, power and outcome were found to have no effects on judgments for observers having a neutral perspective. Based on these findings, the extent to which intergroup aggression is perceived as justified is explained in terms of motivational biases theorized to maintain positive social identity.     

Assessing the role of aggression,empathy, and self‐serving cognitive distortions in trait emotional manipulation

This study extended the examination of the predictors of emotional manipulation. Participants (N = 243) completed measures of trait emotional manipulation, emotional intelligence, social skills, psychopathy, aggression, empathy, and self‐serving cognitive distortions in a cross‐sectional correlational design. For males, higher levels of emotional intelligence, social information processing, indirect aggression, and self‐serving cognitive distortions significantly predicted emotional manipulation. For females, being younger, higher levels of emotional intelligence, indirect aggression, primary psychopathic traits, and lower levels of social awareness significantly predicted emotional manipulation. However for females, emotional intelligence acted as a suppressor. These findings support previous indications that the mechanisms behind emotional manipulation differ as a function of gender. Future research could include ability, rather than trait measures of emotional manipulation, as well as the role of context (such as intimate relationships or workplace environments), thereby allowing additional examination of the nomological network of emotional manipulation.     

Empathy, guilt, and gender: a comparison of two measures of guilt

The relations of empathy with two measures of guilt were examined in a sample of 13- to 16-year-olds (N= 113). Empathy was measured using Davis's IRI and guilt by Tangney's TOSCA and Hoffman's semi-projective story completion method that includes two different scenarios, guilt over cheating and guilt over inaction. Empathy correlated more strongly with both measures of guilt than the two measures correlated with each other. For boys, cognitive perspective-taking was a stronger predictor for guilt than for girls. Hoffman's guilt over inaction was more strongly associated with empathy measures in girls than in boys, whereas for guilt over cheating the pattern was the opposite. The results indicate that boys and girls may emphasize different aspects of morality.     

Assertiveness and cognitive processing in interpersonal situations

This study examined social skills components that precede the delivery of a skilled overt interpersonal response. Using a cognitive-behavioral systems approach to assertiveness, a task analysis of how women receive and process information in interpersonal situations requiring an assertive response to men was performed. Forty women were assigned to high- or low-assertive groups based on their Rathus Assertiveness Schedule scores. In small group sessions, each woman viewed four videotaped problem situations requiring an assertive response to both pleasant and angry males. After viewing each scene, each woman completed three questionnaires: (a) receiving information, (b) processing-generation of alternatives and decision making, and (c) processing-generation of consequences. High- and low-assertive participants were found to differ in their evaluation of consequences, for response options, particularly how a male would likely to behave to them. High-assertive participants were judged to evaluate more correctly than low-assertive participants the likely behavior of males if response options were implemented. All participants generated more complex alternatives and more assertive responses to situations involving an angry male as compared to a pleasant male. No differences were found between groups in their ability to receive information accurately. Correlational results were supportive of a cognitive-behavioral systems approach of assertion, that is, the emission of a skilled response depends on a chain of preceding responses.Thanks are due to Vida Dyson and Lenard Jason for their comments on an early draft of this paper.     

The aggression test as a taxonomic tool: Evaluation in sympatric and allopatric populations of wood-ant species

Ant-workers of Formica lugubris and F. rufa from colonies living sympatrically (from the same area) and allopatrically (from different areas) were tested in pairs using a laboratory aggression test. The aim was to verify whether sharing the same area of origin influences the relationships among heteroeolonials between and within these species which belong to the F. rufa group. The results suggest that a similar degree of agonistic behaviour (ritualised aggression) was shown in sympatric and allopatric conspecific dyads of both species studied. The interactions between F. lugubris and F. rufa were characterised by a low level of overt aggression both in sympatric and allopatric pairs, confirming the interspecific tolerance observed in our previous studies on these wood-ant species. This reduced aggressiveness between workers of F. lugubris and F. rufa coming from the same or a different area can be interpreted on the basis of their sharing common signals, such as odours and patterns of behaviour. Therefore, their mutual tolerance and acceptance can be indicative of a phylogenetic closeness between such species. We propose that an aggression test can be a valid tool for elucidating systematic problems in this taxonomically difficult group of ants. © 1993 Wiley-Liss, Inc.