the preventive programs of antisocial behavior of children and adolescents are prevailingly characterized by two kinds of difficulties: the first one is methodological and refers to the empirical evidence of its effectiveness; on the other hand, the second one is practical and deals with the obstacles the psychologist uses to find in order to introduce the above mentioned programs at public psychological clinics. the purpose of this paper is to suggest some well-known correlated risk and protection factors to the development of antisocial behaviors. such factors may guide proximal measures of the effect of preventive programs of those behaviors by devising research methodology on the matter. to what concerns the introduction of preventive programs at school-clinics, some alternatives are raised to avoid the most frequent obstacles. the offer of services to the population at more convenient places and the delivery of information through short term events carried out at training clinics are examples of these alternatives.