Nancy Bayley was born and reared in The Dalles, Oregon, and died in Carmel, California. In the history of developmental psychology, few other individuals loom so large. After grade school and high school in her home town, Bayley attended the University of Washington in Seattle. She planned to become an English teacher but changed to
The Bayley Scales of Infant Development (BSID-II), published by Psychological Corporation, are a set of scales that takes 45 minutes to administer and assess mental, physical, emotional, and social development. Because the scales provide an overall picture of the child’s developmental status, they are often used to evaluate whether children are developing normally or may