 Objectives: The main objective of the research is to validate self-efficacy and adherence tools in French for type 1 diabetic teenagers, and secondarily, to describe evolution of a 3-month cohort of type 1 diabetes adolescents who took a TPE program on self-efficacy, quality of life, adherence, glycated hemoglobin HbA1c and socio-cognitive factors as Banduras social cognitive theory and the study of possible links between these endpoints. 