Therapist Aid Worksheets Boundaries – Dialectical behavior therapy (DBT) is a sort of cognitive-behavioral treatment that was developed by Marsha M. Linehan to assist people who have trouble controling their behaviors as well as emotions. DBT aids people determine and also change negative idea patterns as well as habits that might be contributing to their difficulties. One manner in which DBT professionals sustain their clients in this procedure is via the use of worksheets.