Step 1: Concept
Jean Piaget proposed a theory of cognitive development that outlines the stages through which children develop their understanding of the world. Positive and negative reinforcement are concepts from behaviorism, which suggest that behaviors are influenced by consequences.
Step 2: Meaning
Assertion (A): This statement refers to Jean Piaget's formulation of different stages in cognitive development.
Reason (R): This statement suggests that cognitive development is solely due to positive and negative reinforcement.
Step 3: Analysis
Piaget’s Stages: Piaget identified four main stages of cognitive development: Sensorimotor, Preoperational, Concrete Operational, and Formal Operational. These stages are based on the idea that children's thinking changes as they grow older.
Reinforcement Theory: This theory posits that behaviors are modified by their consequences. Positive reinforcement increases a behavior while negative reinforcement decreases it. However, this theory does not fully explain cognitive development.
Step 4: Conclusion
Piaget’s theory of cognitive development is well-established and widely accepted in psychology. It focuses on the internal processes of thought and reasoning rather than external reinforcements. Therefore, assertion (A) is correct as Piaget did indeed formulate different stages of cognitive development.
On the other hand, reason (R) does not accurately describe the mechanisms underlying cognitive development according to Piaget’s theory. Cognitive development involves more complex processes such as assimilation, accommodation, and equilibration, which are not directly related to reinforcement.
Final Answer: (C)