The influence of trait anger,trait anxiety and negative urgency on disordered eating

Negative affectivity and impulsivity are potential risk factors for eating pathology. Both are heterogeneous constructs, yielding varied effect sizes in the prediction of pathology. The use of a specific construct, negative urgency, the tendency to act impulsively while distressed, improves the predictive utility of ‘impulsivity’ in eating pathology. The use of specifically defined affectivity constructs may similarly improve theories of risk. Anger and anxiety both represent high arousal, negatively valenced emotions, but promote different interactions with the environment; approach vs. avoidance. Undergraduate women completed measures of negative urgency, trait anger, trait anxiety, and eating pathology 3 months apart. Negative urgency and trait anxiety prospectively accounted for unique variance in increases in global eating pathology, while negative urgency prospectively accounted for unique variance in binge eating. Anger was not a significant predictor. Results suggest that the use of both specifically defined impulsivity and affectivity constructs improves predictive utility of traits in eating pathology.