This paper analyzes the relationship between the educational strategies developed by parents and the premeditated and impulsive aggressiveness that adolescents demonstrate in order to verify the existence of differential correlates between both forms of aggression. The mixed situation, in which the two forms of aggression appear simultaneously in the same individual, is also discussed to check if educational practices are similar or different with respect to the pure forms of aggression. The results indicate that the correlates of both forms of aggression are different: while the factors predicting impulsive aggression are rejection and rigid discipline exercised by the mother, those predicting premeditated aggression are a lack of revelation and an indulgent father discipline. Similarly, the data indicate that the mixed aggression is associated with more negative educational practices than those of adolescents with pure aggression. We conclude that parenting practices differ in premeditated and impulsive aggression, and note the existence of a mixed form of more harmful aggression.