William E. Blatz, Date of Birth, Place of Birth, Date of Death
TweetWilliam E. Blatz
German-Canadian developmental psychologist, known for his creation of security theory
Date of Birth: 
Place of Birth: Hamilton, Ontario, Canada
About William E. Blatz
- William Emet Blatz (; June 30, 1895 – November 1, 1964) was a German-Canadian developmental psychologist who was director of the University of Toronto's Institute of Child Study from 1925 until his retirement in 1960.
- He authored numerous books and was known for his creation of security theory, a precursor to attachment theory. Blatz's theory posited that in infancy and early childhood, the child needs to create a secure base with its caregivers in order to gain the courage necessary to brave the insecurity implicit in exploring the world, and argued that a lack of psychological resilience and self-confidence in adulthood are born out of a failure to develop a secure base in childhood.
Read more at Wikipedia