A clinical psychologist. Choi Keehong graduated from Korea University with a BA and MA in Psychology. Choi received a PhD at Nebraska State University, worked as a postdoctoral fellow in the Department of Psychiatry at New York Columbia University Hospital, and also worked as a research scientist at Yale University Hospital. Currently, Choi is a professor of the Department of Psychology at Korea University and has taken on a role as the chief of the student counseling center and the director of the KU Mind Health Institute annexed to College of Liberal Arts, Korea University. The books written by Choi Keehong include The Clinical Counselor Test Book - Grade 2, The Treatment and Rehabilitation for Serious Mental Illness, and The Cognitive Rehabilitation for Mental Disorder Treatment and Rehabilitation (co-authorship).