Personality and Interpersonal Influence: Low Adjustment and Low Competitiveness is Associated With Low Assertiveness.

This study examined the relationship between personality and interpersonal assertiveness styles, an important and neglected topic. In all, 396 working adults completed a six-factor personality test measuring work-related traits (HPTI) and a two-dimensional assessment of interpersonal styles (III) assessing four styles: Assertiveness, Passiveness, Hostile aggression, and Manipulative aggression. We were particularly interested in the correlates of aggressive and passive behaviour, as opposed to assertive behaviour.