This article discusses clinical applications of three empirical articles published in the present issue of JPA, all focused on adolescent assessment in European countries. Both adolescent and non-American populations receive too little attention in the assessment literature, and these articles aim to address this problem, through research on trait reactance in Portuguese adolescents, reasons for self-harm in Portuguese adolescents, and application of the Roberts-2 with Italian adolescents. How these articles apply to actual clinical practice is discussed.