Retirement at the traditional age of 62 or 65 seems to have peaked in the 1980s or early 1990s, and more people today are choosing to retire either earlier or later

During Piaget's sensorimotor stage, children acquire a

A. theory of mind. B. concept of conservation. C. sense of object permanence. D. capacity for abstract reasoning.

A major weakness of psychoanalytic theories is that they do not adequately explain how development comes about

a. True b. False Indicate whether the statement is true or false