In the present article entitled after the doctoral thesis "The influence of psychosocial reintegration activities on behavioral changes in persons deprived of liberty" is highlighted methodological context (purpose, objectives, assumptions and how to constitute the sample) that guided the conduct of experimental research, methods data collection, the conditions that were used to differentiate detainees by age, length of detention and recidivism, which followed the characteristics of thedevelopment of social and emotional skills. The present research looked at whether there is any statistically and psychologically significant difference in identifying personality traits generating neurosis, aggression, agreeableness, assertiveness, openness in the control group and the impact of psychosocial programs and activities on inmates in prison environment. At the same time, the aim was to notice the difference between the experimental group and the control group regarding the decrease of neurosis and aggression after participating in the programs and psychosocial activities of the detainees in the control group.