چکیده (انگلیسی):

This study analyzed the relationship between aggressive behavior and self-concept in a sample of 2,022 Spanish students (51.09% males) of Compulsory Secondary Education, ranging in age from 12 to 16 years. Aggressive behavior was assessed using the Teenage Inventory of Social Skills (TISS), and self-concept was assessed with the Self-Description Questionnaire II (SDQ-II). Logistic regression analyses showed that adolescents with aggressive behavior were more likely to perceive their relationship with their parents as negative, show little interest in verbal activities, be less sincere, and have lower self-esteem than their non-aggressive peers. Furthermore, despite models varied according to sex and grade, in most cases adolescents with high aggressive behavior also showed a higher probability of perceiving their relation with peers of the same sex in a negative way, being less interested in school domains and showing higheremotional instability than their non-aggressive counterparts. Non-expected results were obtained regardingthe perceptions about interactions with peers of the opposite sex and physical appearance. Results are discussed attending to their practical implications.