Optimizing Outcomes in Psychotherapy for Anxiety Disorders Using Smartphone-Based and Passive Sensing Features: Protocol for a Randomized Controlled Trial

Miriam Müller-Bardorff   ^{1 *} , PhD ;   Ava Schulz   ^{1 *} , PhD ;   Christina Paersch   ¹ , PhD ;   Dominique Recher   ¹ , PhD ;   Barbara Schlup   ² , PhD ;   Erich Seifritz   ² , MD ;   Iris Tatjana Kolassa   ³ , PhD ;   Tobias Kowatsch   ^{4, 5, 6} , PhD ;   Aaron Fisher   ⁷ , PhD ;   Isaac Galatzer-Levy   ⁸ , PhD ;   Birgit Kleim   ^{1 *} , PhD

¹ Experimental Psychopathology and Psychotherapy, Department of Psychiatry and Psychology, University of Zurich, Zurich, Switzerland

² Psychiatric University Hospital Zurich, Zurich, Switzerland

³ Department of Psychology, University of Ulm, Ulm, Germany

⁴ Institute for Implementation Science in Health Care, University of Zurich, Zurich, Switzerland

⁵ School of Medicine, University of St. Gallen, St. Gallen, Switzerland

⁶ Centre for Digital Health Interventions, Department of Management, Technology, and Economics, ETH Zurich, Zurich, Switzerland

⁷ Department of Psychology, University of California at Berkeley, Berkeley, CA, United States

⁸ School of Medicine, New York University, New York, NY, United States

*these authors contributed equally