Adaptation of Individual Dialectical Behavior Therapy Intervention for Transdiagnostic Treatment of Emotional Disorders

Inclusion Criteria: 1. Mandarin Chinese-language proficiency sufficient to complete the study questionnaire 2. A current diagnosis of depressive or anxiety disorder as diagnosed from a SCAN interview Exclusion Criteria: 1. Intellectual disability 2. Substance use disorder in the past three months 3. Bipolar disorder 4. Psychotic disorder 5. Organic brain disorder 6. Acute suicidality or a history of frequent or recent suicide attempts 7. Recent (past six weeks) change in psychiatric medication or unwillingness to maintain a stable dosage of medication during study participation 8. Had received five or more sessions of CBT in the past five years or was unwilling to stop concurrent psychotherapy for an emotional disorder 9. Any mental or physical condition requiring hospital admission 10. Another medical condition likely to prevent participation in the study As we also aim for a naturalistic setting, we do not exclude patients who undergo a medication change during the trial if this is judged necessary or clinically important by the treating clinician. Instead, we include a question about this in the questionnaire to the referring/treating clinician.