Hanneke (J.P.A.) van Leeuwen works in the Vincent van Gogh for geestelijke gezondheidszorg as mental health care psychologist, training to be a clinical psychologist. Within the institute, she has played a big role in the development and implementation of the (e-health concerned the) DBT after-care module. Additionally, she is conducting a scientific research into the DBT after-care module as PhD candidate. The goal of this study is to investigate the consolidation of the learned skills from the standard DBT programme.