Clarissa Ong is a PhD student in Clinical Psychology at Utah State University, and a Predoctoral Intern at McLean Hospital. She is the lead author of several widely cited papers on ACT, perfectionism, obsessive compulsive disorder, hoarding, and other topics, and an expert on the emerging topic of Process-Based Therapy.

About Clarissa Ong:

Google Scholar: https://scholar.google.com/citations?user=MGiZ6nIAAAAJ
Twitter: @ongclarissaw

Selected Research:

A meta-analysis of dropout rates in acceptance and commitment therapy
Clarissa W Ong, Eric B Lee, Michael P Twohig

A randomized controlled trial of acceptance and commitment therapy for clinical perfectionism
Clarissa W Ong, Eric B Lee, Jennifer Krafft, Carina L Terry, Tyson S Barrett, Michael E Levin, Michael P Twohig

In-Person and Online-Delivered Acceptance and Commitment Therapy for Hoarding Disorder: A Multiple Baseline Study
Clarissa W Ong, Jennifer Krafft, Franchessca Panoussi, Julie M Petersen, Michael E Levin, Michael P Twohig

A Pilot Randomized Controlled Trial of Online-Delivered ACT-Enhanced Behavior Therapy for Trichotillomania in Adolescents
Michael P Twohig, Julie M Petersen, Jeremiah Fruge, Clarissa W Ong, Jennifer L Barney, Jennifer Krafft, Eric B Lee, Michael E Levin

Beyond Acceptance and Commitment Therapy: Process-Based Therapy
Clarissa W Ong, Michael E Levin, Michael P Twohig

ACT in Steps: A Transdiagnostic Manual for Learning Acceptance and Commitment Therapy
Michael P Twohig, Michael E Levin, Clarissa W Ong

About John Maier:
http://www.jmaier.net/about-me/

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