Caleb W. Lack, Ph.D. is a Professor of Psychology, the Counseling Psychology MA program coordinator, and the Counseling Psychology & MFT practicum coordinator in the Department of Psychology at the University of Central Oklahoma. In the past, he was also the Director of the UCO Psychology Clinic, which provides psychotherapy, applied behavioral analysis, psychoeducational evaluations, and academic interventions to the Edmond and Oklahoma City metro areas.

A licensed clinical psychologist, Dr. Lack is the author or editor of eight books on topics from critical thinking and pseudoscience to racism and sexism in early psychology to various kinds of psychopathology. He has also authored more than 65 scientific publications relating to the assessment and treatment of psychological problems such as Obsessive-Compulsive Disorder (OCD), Tourette’s Syndrome, pediatric mood disorders, and posttraumatic stress (PTSD). In addition, Dr. Lack regularly presents nationwide and internationally at conferences on a variety of topics, is on the editorial board of scientific journals, and is a reviewer for both journals and granting agencies.

Dr. Lack’s clinical interest in evidence-based practice developed while in graduate school for Clinical Psychology at Oklahoma State University and during his predoctoral internship in Clinical Child/Pediatric Psychology at the University of Florida. He specializes in the treatment of children and adults with anxiety disorders and obsessive-compulsive and related disorders, such as chronic tics, Tourette’s Syndrome, trichotillomania, and excoriation. He is regularly consulted for and interviewed by local, national, and international media outlets, including the New York Times, The Atlantic, and more.

In addition to courses on his clinical and research specialties in the anxiety and obsessive-compulsive disorders and evidence-based psychological practice, Dr. Lack also teaches undergraduate and graduate courses on critical thinking, science, and pseudoscience. He writes the Great Plains Skeptic column on the Skeptic Ink Network, as well as presenting about skepticism and critical thinking frequently. He is the former Director of the Secular Therapist Project, which aims to bring together non-religious persons seeking mental health treatment with secular, evidence-based providers. Dr. Lack is also the founding advisor of the Skeptics@UCO, a campus group dedicated to the application and promotion of reason and scientific skepticism in all areas of life.

A native Oklahoman, Dr. Lack grew up in the rural community of Mountain View, where his parents still reside and farm and ranch on land that has been owned by the family for close to 100 years. He currently resides in Edmond, Oklahoma with his family, two stalwart livestock guardian dogs, a clowder of vicious barn cats, a head of insufferable goats, and a snorting drove of kunekune pigs on a wonderful little property called Freethought Farm.