Recent advances in personality theory indicate that there are distinct constructs that dispose individuals to rash action and risky behavior, as opposed to one broad trait of impulsivity. Two are emotion based, two represent deficits in conscientiousness, and one is sensation seeking. Previous studies of impulsivity and its relationship to bulimia nervosa have yielded mixed findings. The authors applied this advance in personality theory to the study of bulimia nervosa (BN) to test the hypothesis that the emotion-based disposition of negative urgency (the tendency to act rashly when distressed) relates most strongly to BN symptoms. A meta analysis of 50 articles indicated the following. Negative urgency had by far the largest effect size (weighted r = .38), followed by sensation seeking (weighted r = .16); lack of planning (weighted r = .16) and lack of persistence (weighted r = .08). Methodological moderators of the effect of distinct traits on BN symptoms were the use of scales that precisely measured one construct as opposed to general impulsivity scales that measured several constructs, clinical vs. non-clinical samples, and whether or not the personality scale was translated from its original language or not. Negative urgency appears especially important for BN; more broadly, researchers should consider the role of emotion-based dispositions to rash acts in their risk theories. This paper reports the results of a meta analysis investigating the role of impulsivity in bulimia nervosa, with a focus on recent advances in the field's understanding of the personality basis for rash action. Rash or impulsive actions characterize many different recognized disorders, including binge eating and purging symptoms of eating disorders, substance abuse, borderline personality disorder, antisocial personality disorder, attention-deficit/hyperactivity disorder, as well as the set of impulse-control disorders (intermittent explosive disorder, kleptomania, and pyromania (Whiteside & Lynam, 2001). It is therefore crucial to understand the personality contribution to rash or impulsive actions. This meta analysis contributes to that end by studying the role of impulsivity in relation to one disorder characterized by such actions: bulimia nervosa (BN). Theoretical Advances in the Study of Personality and ImpulsivityRecent studies indicate that the term impulsivity encompasses a wide range of traits that are only moderately related, rather than a single uni-dimensional personality

Negative urgency, the tendency to act rashly when distressed, is characterized by high Neuroticism, low Conscientiousness, and low Agreeableness. Because of this set of characteristics, the authors hypothesized that (1) negative urgency (NU) is a particularly important predictor of externalizing dysfunction; (2) traits that reflect primarily high Neuroticism predict internalizing dysfunction and (3) traits that reflect primarily low Conscientiousness predict those types of externalizing dysfunction that include intense affect less strongly than does NU. In three studies, the authors showed that negative urgency concurrently predicted alcohol dependence symptoms in disordered women, drinking problems and smoker status in pre-adolescents, and aggression, risky sex, illegal drug use, drinking problems, and conduct disordered behavior in college students. High Neuroticism traits predicted internalizing dysfunction but predicted none of these externalizing criteria beyond negative urgency. Low Conscientiousness did not add to prediction from negative urgency, except in a few cases. The tendency toward affect-driven rash action may underlie many externalizing behaviors.

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This study prospectively examined the relation between alcohol use and sexual assault in a sample (N = 319) of first-year college women. Both frequency of drinking and frequency of binge drinking were measured. Over the course of their freshman year, 19.3% reported experiencing at least one sexual assault. Frequent binge drinking and frequent drinking predicted a subsequent sexual assault; however, experiencing a sexual assault did not predict changes in alcohol use. Frequent binge drinking demonstrated a stronger association with sexual assault than did frequent drinking. Findings help clarify the relation between alcohol use and sexual assault in college women and call for continued differentiation in assessment of alcohol use.

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