In addition to the institution's routine T1DM training, the "Adjustment to Adolescence and Transition to Type 1 Diabetes Education Program" prepared in line with Meleis's Transition Theory was applied to adolescents online via the Microsoft Teams Program.

The institution's routinely planned diabetes education was given by the pediatric diabetes education nurse.

The content of the Training Program was created by researchers based on Transition Theory, in line with high-level research results and international guides. Then, the necessary arrangements were made by taking the opinions of 10 experts (child health and disease nursing faculty member, child and adolescent mental health specialist, child endocrinologist, child development specialist, nutrition and dietetics specialist, sports training specialist). The content was finalized in line with the comments received.

Reynolds Adjustment Screening Inventory has four subscales. These; emotional distress (10 items), antisocial behavior (8 items), positive self (6 items related to self-confidence and socialization) and anger control problems (8 items). The Cronbach alpha value of the scale is stated as 0.91. The lowest score of the scale is 32 and the highest score is 165.

The scale is used to determine the educational needs of adolescents or to evaluate the effectiveness of diabetes education programs. The scale consists of 26 items ranging from 1 (completely agree) to 5 (strongly disagree). The lowest total score that can be obtained from the scale is 26 and the highest is 130. A higher score indicates less self-efficacy. The Cronbach's alpha coefficient of the scale was found to be 0.85.