Which stage is NOT part of Piaget's Theory of Cognitive Development?

In Piaget's Theory of Cognitive Development, the stages include the Sensorimotor Stage, the Pre-operational Stage, the Concrete Operational Stage, and the Formal Operational Stage. The Concrete Operational Stage typically occurs between the ages of 7 and 11, where children begin to think logically about concrete events. The Pre-operational Stage occurs from approximately ages 2 to 7, characterized by symbolic thinking and egocentrism, while the Formal Operational Stage involves abstract and logical reasoning, usually beginning around age 11.

The option referring to the "Behavioral Stage" does not exist within Piaget’s framework; thus, it is correctly identified as not being part of his theory. Piaget focused on cognitive development through specific stages that reflect how children's thinking evolves and matures, rather than categorizing development in terms of behavior. The existence of this Behavioral Stage option highlights a misunderstanding of the theoretical framework rather than an actual part of Piaget’s cognitive development theory.