The difference between the child's actual developmental level and that child's potential level of development if guided by adults or older peers is called the:

Oscar redirects his aggressive urges to beat up and dominate others into a lucrative career as a professional boxer

This is an example of what Freudian defense mechanism? A) Displacement B) Projection C) Rationalization D) Sublimation

A group of people born during the same period in historical time is a(n) ______

a. peer group c. cohort b. developmental group d. age group