All of the following are stages in Sigmund Freud's psychoanalytic theory EXCEPT:

Piaget believed that __________ are schemes reflecting an infant's repetition of interesting or enjoyable actions that focus on the infant's own body

a) primary circular reactions b) circular reactions c) secondary circular reactions d) tertiary circular reactions

By changing the number of items in Piaget's conservation test, subsequent researchers found that __________.

A. young children make even more preoperational errors than Piaget thought B. older children were worse than younger children when it comes to preoperational errors C. young children make fewer preoperational errors than Piaget thought D. young children made no preoperational errors