We have already published the psychometric properties of our Spanish version of the Buss and Perry's Aggression Questionnaire adapted to young subjects (Personality and Individual Differences, 42, 1453-1465). The four-dimensional structure of the questionnaire was confirmed in each pre-adolescent and adolescent sample, although differences in the inter-correlations among factors between both groups of age were then observed. We publish now new evidences about its factorial validity in the whole group of pre-adolescent and adolescent children. We also report the positive correlations found between measurements obtained with this questionnaire (AQ-PA) and other aggression and anger scales (DIAS, STAXI and EXPAGG) and the Barratt Impulsiveness Scale (BIS-11), which provide more evidences about its convergent validity. The text of the Spanish version of this questionnaire adapted to pre-adolescent and adolescent subjects is also reported.