Anger is commonly associated with aggression. Inefficient anger-coping strategies increase negative affect and deplete the regulatory resources needed to control aggressive impulses. Factors linked with better emotion regulation may then weaken the relationship between anger and aggression. The current work explored one factor associated with emotion regulation-differentiating one's emotions into discrete categories-that may buffer angry people from aggression. Three diary studies (N = 628) tested the hypothesis that emotion differentiation would weaken the relationship between anger and aggression. In Study 1, participants high in emotion differentiation reported less daily aggressive tendencies when angry, compared to low differentiators. In Study 2, compared to low differentiators, high differentiators reported less frequent provocation in daily life and less daily aggression in response to being provoked and feeling intense anger. Study 3 showed that high daily emotional control mediated the interactive effect of emotion differentiation and anger on aggression. These results highlight the importance of considering how angry people differentiate their emotions in predicting their aggressive responses to anger.

Deriving hypotheses from I 3 theory (pronounced "I-cubed theory"), the authors conducted 4 studies to clarify the circumstances under which dispositional aggressiveness predicts intimate partner violence (IPV) perpetration. Consistent with the hypothesis that this link would be stronger when inhibitory processes are weak rather than strong, Studies 1 and 2 demonstrated that dispositional aggressiveness was an especially robust predictor of IPV perpetration among people experiencing self-regulatory strength depletion. Consistent with the hypothesis that this Dispositional Aggressiveness ϫ Inhibition interaction effect would be stronger when instigating triggers are strong rather than weak, Studies 3 and 4 demonstrated that dispositional aggressiveness was an especially robust predictor of IPV perpetration among people characterized by both weak inhibition (poor executive control in Study 3, depletion in Study 4) and strong instigation (provocation in both studies). These effects were robust in studies employing experimental and nonexperimental designs, cross-sectional and longitudinal methods, dating and married participants, self-report and behavioral measures of IPV perpetration, and diverse operationalizations of all constructs. Discussion emphasizes the importance of incorporating instigating, impelling, and inhibiting processes into theoretical and empirical analyses of IPV perpetration.

A key problem facing aggression research is how to measure individual differences in aggression accurately and efficiently without sacrificing reliability or validity. Researchers are increasingly demanding brief measures of aggression for use in applied settings, field studies, pretest screening, longitudinal, and daily diary studies. The authors selected the three highest loading items from each of the Aggression Questionnaire's (Buss & Perry, 1992) four subscales--Physical Aggression, Verbal Aggression, anger, and hostility--and developed an efficient 12-item measure of aggression--the Brief Aggression Questionnaire (BAQ). Across five studies (N = 3,996), the BAQ showed theoretically consistent patterns of convergent and discriminant validity with other self-report measures, consistent four-factor structures using factor analyses, adequate recovery of information using item response theory methods, stable test-retest reliability, and convergent validity with behavioral measures of aggression. The authors discuss the reliability, validity, and efficiency of the BAQ, along with its many potential applications.

Aggression pervades modern life. To understand the root causes of aggression, researchers have developed several methods to assess aggressive inclinations. The current article introduces a new behavioral method—the voodoo doll task (VDT)—that offers a reliable and valid trait and state measure of aggressive inclinations across settings and relationship contexts. Drawing on theory and research on the law of similarity and magical beliefs (Rozin, Millman, & Nemeroff [1986], Journal of Personality and Social Psychology, 50, 703−712), we propose that people transfer characteristics of a person onto a voodoo doll representing that person. As a result, causing harm to a voodoo doll by stabbing it with pins may have important psychological similarities to causing actual harm to the person the voodoo doll represents. Nine methodologically diverse studies (total N = 1,376) showed that the VDT had strong reliability, construct validity, and convergent validity. Discussion centers on the importance of magical beliefs in understanding the causes of aggressive inclinations. Aggr. Behav. 39:419–439, 2013. © 2013 Wiley Periodicals, Inc.

Why do people behave aggressively toward romantic partners, and what can put the brakes on this aggression? Provocation robustly predicts aggression in both intimate and nonintimate relationships. Four methodologically diverse studies tested the hypothesis that provocation severity and relationship commitment interact to predict aggression toward one's romantic partner, with the aggression-promoting effects of provocation diminishing as relationship commitment increases. Across all four studies, commitment to one's romantic relationship inhibited aggression toward one's partner when individuals were severely (but not mildly) provoked. Study 4 tested the hypothesis that this Partner Provocation × Commitment interaction effect would be strong among individuals high in dispositional tendencies toward retaliation but weak (perhaps even nonexistent) among individuals low in such tendencies. Discussion emphasizes the importance of understanding instigating, impelling, and inhibiting processes in the perpetration of aggression toward intimate partners.