This study evaluated the predictive relationship between the communicative openness and psychological adjustment of adopted adolescents, controlling for preplacement risk factors. One hundred Spanish international adoptees aged 12-18 took part in the study. Data were gathered with a structured interview, the Youth Self Report and the Adoption Communication Scale. A history of maltreatment prior to the adoption was associated with more closed communication between parents and children. Prenatal drug exposure shows a relationship with the presence of externalizing behaviors and attention problems in adolescents. Finally, a lower degree of communicative openness regarding the child's origins was significantly associated with the presence of all the adolescent behavioral problems studied.