Psychological developmental stages of a 16 year old. This is a 3-page paper that analyzes the three major stages of a 16 year old with reference to Piaget's, Berger's and Erikson's theories. 3 pgs, bibliography lists 3 sources. Pages: 3 Bibliography: 3 source(s) listed Filename: 12423 Psychological developmental stages.doc Price: 26.85