In this cross-sectional study, we analyse the relationship between personality, which was operationalized in the PSY-5 dimensions of the Minnesota Multiphasic Personality Inventory -Adolescent (MMPI-A) and the way students live their lives at school, expressed through indicators of achievement, integration, and overall satisfaction. A total of 351 students, aged 14-18 years, participated in the study. Understanding the reasons that make individuals behave in a certain manner and to identify the factors contributing for the explanation of (un)adaptive pathways throughout the life cycle has always been a focus of research in the individual differences domain. Especially in adolescence, where major physical and psychosocial changes occur, and a plethora of new opportunities emerge, the comprehension of the factors infl uencing behaviour in normative contexts, such as school, is of uttermost importance.Adolescents spend more time in school that in any other place outside home (Eccles, 2004). It is in school where they can express their characteristics and are presented with several development opportunities, such as social interaction with peers and adults, discovery of interests,