Inclusion Criteria: For the proposed study, inclusion criteria are as follows: 1) age 12 years, 0 months to 18 years, 11 months; 2) a diagnosis of Bipolar Disorder (BP) I, II or NOS by the K-SADS-PL with an acute manic, mixed or depressive episode in the 3 months preceding study entry; 3) willing to engage in pharmacotherapy treatment at the CABS specialty clinic; 4) at least one parent or guardian with whom the patient lives or interacts on a significant basis (5 hours per week or more) who is willing to participate in DBT skills training; 5) English language fluency and at minimum a 3rd grade literacy level; 6) able and willing to give informed consent/assent to participate.