Video Resources Below are some useful videos to give you a better understanding of our Test and Services. Feel free to take a look below, if you have any questions feel free to contact us. What is CAT-MHTM? CAT-MHTM Demo “Statistics, Item Response Theory, and My Time in the Cook County Jail” 2016 Blum-Riese Named Professorship Lecture, University of Chicago UCLA Depression Grand Challenge Worldwide uses CAT-MHTM In Emergency Department (ED) Studies the CAT-MHTM identified 22% of patients with Major Depressive Disorder, 7% at a severity level in need of immediate treatment, and 3% with serious suicide risk. None of these suicidal patients were identified by ED clinicians. These patients had significant increases in ED visits and hospitalizations (doubling of the rate) in the year following their ED visit. None of these patients had a psychiatric diagnosis.