Moral approval of aggression and sex role identity in officer trainees,conscientious objectors to military service,and in a female reference group

The Moral Approval of Aggression Inventory (MAAI) and Bem's Sex Role Inventory (BSRI) were administered to three experimental groups: officer trainees ( = OTs, n = 48), conscientious objectors to military service ( = COs, n = 35), and to a group of women of comparable age (n = 32). Aggression was mostly approved of among OTs and the least among COs, the women scoring in the middle somewhat closer to OTs. Differences in choice of sex role identity emerged, so that OTs often chose a masculine sex role, while for COs, the choice of an androgynous role was the most frequent one. Women chose feminine and androgynous roles with equal frequency. Moral approval of aggression could not be explained on the basis of sex role identification. The strongest determinator of moral approval of aggression was the choice of refusal to engage in military service.     

Moral approval of aggressive acts: A preliminary investigation

A questionnaire was used to investigate 1) the approval of various kinds of aggressive behaviour under different specified circumstances and 2) the arousal of feelings of aggression in imagined situations. In addition, an attitude test was presented which discriminated between the two highest of Kohlberg's levels of moral reasoning [1969]. The subjects were a very varied group of 83 adults (aged 17–68 years) from municipal evening courses in Finland. Aggression was most approved when it was given altruistic purpose. Self-defense was rated as the second highest justification for aggression. Aggression was found least legitimate when the reasons were emotional (drunk, rage). The justification of some types of aggressive behaviour were dependent on the conditions under which they occurred, whereas others appeared independent. Killing and torture were the most disapproved kinds of aggressive behaviour. Another's attack was the most powerful instigator of feelings of aggression, whereas frustration seemed relatively unimportant. Females approved of emotional expressions of aggression to a greater extent than did males. The moral test did not correlate with approval of aggression in general, but a couple of more specific predictions about the effects of level of moral reasoning on attitudes to socially sanctioned forms of aggression were tentatively confirmed.     

Failure to induce aggression in inhibited and in genetically non-aggressive mice through injections of ethyl alcohol

Two kinds of nonaggressive mice were used as subjects: 1) males from a strain selectively bred for nonaggressiveness (TNA) and 2) males from a strain selectively bred for aggressiveness (TA) but made nonaggressive by defeats in fights. The aggressiveness of neither type of animal was increased by injections of ethyl alcohol in concentrations of 1 gm/kg and 1.5 gm/kg. Three series of experiments were performed. The results were incompatible with the assumption of a general physiological aggression-heightening effect of ethanol, and also with an assumption of removal by alcohol of learned inhibitions against aggression.