Frustration and instrumentality of aggression

The influence of two different reinforcers of aggression was investigated: Frustration (intrinsic primary reinforcement) and instrumental value of aggression (extrinsic primary reinforcement). In the first part of the experiment frustration was manipulated on two levels by having the stooge interfere very often or seldom in the ?building a village' task of the subject. In the second part of the study the stooge had to judge distances in traffic while the subject was allowed to give him electrical shocks in order to startle and hinder the stooge in his estimation task. The aggression score of the subject was formed by the number and the intensity of the shocks delivered. Instrumentality of aggression was manipulated on two levels by indicating or not that the subjects could earn more money the more and stronger they shocked their partner. Confirming the predictions, significantly more aggression was expressed when this could lead to earning more money than in those conditions where this was not the case. Also confirming predictions, the impact of instrumentality on aggression was stronger than the influence of frustration. Frustration did not lead to a significant increase in the level of aggression.     

Similarity of attitudes and instrumentality as determinants of aggression by policemen

The influences of two determinants of aggression were investigated by means of a two by two factorial design. Aggression was operationally defined in terms of the amount and intensity of obnoxious sounds which the subject delivered to the confederate while the latter was trying to perform a task involving estimation of distances. In order to manipulate the first independent variable one half of the group of subjects were led to believe that the victim was someone who had many attitudes similar to their own. The other subjects thought they had to cope with a partner whose attitudes were dissimilar. The second independent variable was manipulated by suggesting to one half of the group of subjects that they would be able to earn increasing sums of money (up to a fixed maximum) depending on the loudness of sounds they were prepared to deliver to their partner. In the non-reward condition money was not mentioned. The subjects were young policemen. The data showed a strong effect of the similarity variable, with significantly more aggression being shown to a dissimilar partner. However, external reward did not lead to a clear increase of aggression. In the discussion attention is given to the relevance of these data to the problem of control of violence in our society.     

Human physical aggression as a function of magnitude of frustration: indirect support and a possible confounding influence

An experiment was performed to test whether thwarting close to the goal leads to higher levels of frustration and higher levels of aggression than thwarting far from the goal in a slightly modified version of the Buss' "aggression machine." Subjects first calibrated a shock scale and were then put in a situation in which they could give electric shocks to a confederate under an acceptable pretext. It was not possible to confirm the specific hypothesis directly but a positive correlation was found between over-all self-rated subjective frustration and a measure of total aggression supporting a general frustration-aggression hypothesis. However, it was also found that the initial calibration of the shock scale correlated positively with the measure of total aggression, indicating the possible confounding influences are operative in this kind of paradigm.     

Physical aggression as a function of objective self-awareness and attitudes toward punishment

Based on a theory of self-awareness, it was hypothesized that subjects would use their attitudes to determine their behaviors when (a) that attitude was salient and (b) their attention was directed toward themselves. Subjects, who on questionnaires had indicated that they opposed or condoned the use of punishment, were given the opportunity to shock a male confederate in two (bogus) learning experiments. Each subject was instructed to use his own attitude in choosing shocks to punish incorrect responses. Self-awareness was increased among half the subjects by the presence of a mirror. In each experiment a Punitiveness by self-awareness interaction resulted: High Punitive-Mirror subjects shocked higher than Low Punitive-Mirror subjects, but their respective No Mirror controls did not differ from each other.     

Physical aggression as a function of perceived fighting ability among male and female prisoners

Study 1 used two scenarios depicting provocations to investigate whether prisoners' willingness to engage in physical aggression would vary according to the perceived fighting ability (Resource Holding Power [RHP]) of the opponent. RHP was operationalized in terms of three levels of the size, number of allies, and reputation. The sample (both sexes; N=1,253) was taken from a range of British prisons. Unexpectedly, the prisoners said that they would be less likely to attack a weaker opponent than an equally matched one. The predicted decline from equally matched to more formidable opponents was found only under some conditions. A further sample of male prisoners (N=260), completed a similar provocation scenario, with response options covering fear, several forms of aggression, the importance of the provocation for reputation, and that the provocation was unimportant. Fear increased with RHP as predicted. Lower physical aggression to a low RHP opponent was again found, and it was associated with a lesser impact on reputation of an insult from this source. There was also a lower likelihood of responding with physical aggression to a high RHP opponent, as originally predicted. Implications of the findings for motivational theories of aggression are discussed, and also the applicability to humans of concepts from game theory models of the evolution of fighting strategies.     

Mediators between frustration and aggression in a field experiment

To assess some of the mediators between a frustrating incident and subsequent aggressive behavior in a field situation, 320 male and female subjects were assigned to one of 32 experimental conditions in a 2 × 2 × 2 × 2 × 2 factorial design. Either a male or female experimenter, saying “Excuse me” or not, dressed in high or low status clothing, cut in line in front of the subject, who was standing near the front or back of the line. Verbal and nonverbal aggressiveness were coded and summed to measure total aggression. Subjects near the front of the line or interacting with a low status experimenter were more aggressive than those at the back of the line or seeing a high status experimenter. Less aggression was directed against the female experimenter or one who said “Excuse me,” and there was a strong tendency for subjects to be more aggressive to a same-sex experimenter. It was suggested that further research on instigators to aggression be carried out in such field situations.     

Physical aggression as a function of perceived fighting ability and provocation: an experimental investigation

In three studies, Resource Holding Power (RHP) and provocation were manipulated in scenarios involving a young person in a bar with friends. In Study 1, teenage men reported lower likelihood of responding with physical aggression when insulted as levels of three RHP cues (size, allies and reputation) increased, effects that were accentuated by combinations of high-RHP cues; in the second part of this study, they consistently rated an insult to their girlfriend as the most provoking from a range of possible provocations, chosen on theoretical and empirical grounds. Study 2 replicated the results of the first part of Study 1 in samples of men and women in their twenties, although the effects were weaker at low levels of RHP. Study 3 combined a high- or low-provoking event, with low, medium or high RHP, and a wider range of response choices. As expected, direct aggression increased as provocation increased and RHP decreased. Delayed aggressive responses, including revenge fantasies, were highest in response to high provocation and high RHP. Findings are discussed in relation to theoretical models of aggressive motivation.     

Effects of frustration justification on hostile aggression

The present study tested Berkowitz' [1989: Psychological Bulletin 106:59-73] reformulation of the frustration-aggression hypothesis which states that any negative or aversive stimulus such as frustration, even if justified, will result in some measurable tendency to aggress, Participants' attainment of an expected gratification was either blocked in an unjustified manner, blocked in a justified manner, or not blocked at all. Degree of hostile aggression directed at the frustrating individual was measured. As predicted, justified frustration produced less hostile aggression than unjustified frustration, but even justified frustration produced more hostile aggression than no frustration at all. Results support Berkowitz' frustration-aggression reformulation. © 1995 Wiley-Liss, Inc.     

Schedule-induced aggression as a function of fixed-ratio value

Pigeons responding for food on fixed-ratio reinforcement schedules attacked live target birds when the ratio value was increased, but not when the value was decreased. The frequency of attacks peaked several days after ratio value change, and then gradually decreased to an original level.     

Female aggression as a function of attitudes toward women

The aggressive behavior of female subjects who held either liberal or traditional beliefs concerning the role of women in modern society was investigated as a function of provocation by traditional or liberal male opponents. Traditional female subjects responded more aggressively than liberal females. The male opponent's attitude had no effect on female aggression.This article is based on an honors thesis submitted to the Honors and Experimental College of Kent State University by the second author.