Daniel Klein, Ph.D. is a Distinguished Professor in the Department of Psychology at Stony Brook University, State University of New York. He has been a leading figure in developmental psychopathology and mood disorders research since 1983, with a focus on depression across the lifespan. He directs two major longitudinal studies: the Stony Brook Temperament Study and the Adolescent Development of Emotions and Personality Traits study. Education: Dr. Klein earned his Ph.D. in Clinical Psychology from the State University of New York at Buffalo in 1983. Research Interests: His work centers on developmental psychopathology, particularly mood disorders in children, adolescents, and adults. Key areas include the intergenerational transmission of depression, roles of temperament and emotional reactivity, early adversity, long-term course of mood disorders, classification of mood disorders, comorbidity, and treatment approaches. Current Research: Dr. Klein is currently directing the Stony Brook Temperament Study, a longitudinal investigation of early temperament and emotional style in the development of mood and anxiety disorders in a large community sample of children assessed from age 3 to 21. He is also co-directing (with Dr. Roman Kotov) the Adolescent Development of Emotions and Personality Traits study, which follows early adolescent girls from age 14 to 25 to identify antecedents and pathways to depressive disorders. Awards and Honors: Dr. Klein has received numerous prestigious awards, including: Distinguished Scientist Award, Society for a Science of Clinical Psychology (APA Division 12, Section III) Joseph Zubin Award for Lifetime Contributions in Psychopathology, Society for Research in Psychopathology Distinguished Scientific Contributions to Clinical Psychology, Society of Clinical Psychology (APA Division 12) Lawrence H. Cohen Outstanding Mentor Award, Society for a Science of Clinical Psychology John Neale Sustained Mentorship Award, Society for Research in Psychopathology Dean’s Award for Excellence in Graduate Mentoring by a Faculty Member, Stony Brook University Contact Information: Office: Psychology A-338, Phone: (631) 632-7859, Email: daniel.klein@stonybrook.edu






