This study investigated measures of aggressive drive derivatives on the Rorschach and Personality Assessment Inventory with 70 college students. As predicted, (a) self-reported physical aggression potential was related to Rorschach measures of identification with the aggressor and aggressive impulses, (b) suicidal ideation with impulsivity was related to a Rorschach measure of aggressive impulses turned toward the self, and (c) the borderline features scale was related to a Rorschach pathological object relations measure. Hierarchical regression analyses showed that a Rorschach measure of emotional impulsivity added unique variance to these Rorschach aggression variables in predicting self-reported physical aggression potential, suicidal ideation with impulsivity, and borderline features. Finally, caution is advised in applying our findings when there is motivation to suppress aggressive responses
