Learning Objectives

5.1 Discuss the cognitive-developmental perspective on infant reasoning.

5.2 Evaluate Piaget’s sensorimotor reasoning stage in light of research evidence.

5.3 Describe the information processing system and its development in infancy.

5.4 Discuss individual differences in infant intelligence.

5.5 Summarize the patterns of language development during infancy and toddlerhood.

5.6 Compare and contrast influences on language development.