This is a qualitative study of participants who have taken part in a randomized controlled trial comparing transdiagnostic metacognitive therapy and disorder-specific cognitive-behavioral therapy for anxiety disorders. The purpose of the study is to explore participant perceptions of the respective treatment models to facilitate implementation and dissemination of the treatments.

Inclusion Criteria:

• Age 18 years or older,
• A principal diagnosis of generalized anxiety disorder, social anxiety disorder, or posttraumatic stress disorder,
• No change in dose during the last six weeks if on pharmacological treatment, and
• Ability to read and speak Swedish.

Exclusion Criteria:

• A current diagnosis of psychotic disorder, bipolar disorder, neurocognitive disorder, or moderate to severe substance use disorder,
• Acute suicide risk, or
• Concurrent psychological treatment.

The datasets analyzed in this study are not publicly available due to legal and ethical restrictions under Swedish data protection regulations. Requests for access may be directed to the Data Protection Officer at Stockholm Health Care Services, and are subject to approval by the relevant data governance authorities. Requests to access the datasets should be directed to gdpr.slso@regionstockholm.se.