Identifying a new subcategory of aggression: sex differences in direct non‐verbal aggression

This study demonstrates the potential usefulness of isolating for analysis an additional component of aggression, namely direct non‐verbal aggression. Exploratory and confirmatory factor analytic procedures were used to design a self‐report inventory measuring direct physical, direct verbal, indirect and direct non‐verbal aggression (eg. silent treatment) in adults (Sample 1: n = 101 males, n = 112 females; Sample 2: n = 56 males, n = 160 females) and adolescents (Sample 3: n = 75 males, n = 100 females). The factor structure was replicated across the adult and adolescent samples. Analysis of sex differences on all three samples showed that men and adolescent boys were more physically aggressive than women and adolescent girls, while women and adolescent girls were found to use direct non‐verbal aggression more than men and adolescent boys. No sex differences were found on indirect aggression, strictly defined, wherein aggressors must take steps to hide their identities and may use others as vehicles to deliver the harm.