Adolescence in Spain, Palestine and Portugal: a comparative analysis. This article summarizes the conclusions of our research on adolescence in Spain, Palestine and Portugal. We intented to establish the behavioral patterns –global and differential– in the main field of social life, the relationships of adolescents with their groups, the determinant factors of their antisocial behaviours and, generally, their perception of social reality. We have considered a set of social and demographic outstanding variables and we have used a great number of questionnaires and scales to measure the psychological and social dimensions. The results suggest the influence of socialization contexts of adolescents on social adjustment and deviance; also, the differences among the national groups directly related with the different attitude in the religious fact.