In Mexico 2006 and Buenos Aires 2013 we presented investigations about Adolescence from a Developmental Psychology perspective (Vital Cycle) using our conceptual model. This approach allows a systematic approximation to various phenomena of personality within the developmental parameters expected in every stage and the use of psychological instruments that apply it as a theoretical reference and for psychometric studies. In this research, we present the comparative results of two psychological assessments of adolescents in two different moments in time: one in 1990-1995 and the other un 2009-2014. Methodologically, it is a descriptive and comparative study of 60 non patients participants between 16 and 17 years of age, men and women, single, students from a high middle class socio-economic level, who came for vocational orientation. We will use the Rorschach Inkblot Method, The Human Drawing and the Wechsler Adult Intelligent Scale (WAIS-III). The aim is to evaluate personality traits in two groups of adolescents using the work model which evaluates these signs and that we have modified in different studies (Ráez, 1999, 2001,2005, 2013). We want to investigate the differences between two groups of people who developed in different moments in time, since context is a source of change. The concept of ""transition"", essential to developmental psychology, indicates the presence of crucial events. The variely of existing changes between the end of the 20th century and the beginning of he 21st one, more than 15 years of difference, corresponds to this concept. Will we find differences because of the transition variable or will results be similar to common adolescent stage characteristics?