Which of the following best describes the stage-based theory of cognitive development proposed by a Swiss psychologist?

• A. Constructivism
• B. Behaviorism
• C. Piaget's theory of cognitive development
• D. Social development

Answer: (C)

The main idea being tested is a stage-based theory of how children think that was developed by a Swiss psychologist. Jean Piaget proposed that kids move through four distinct stages of cognitive development, and each stage brings a different way of thinking. In infancy, thinking is tied to concrete actions and sensorimotor experience, and object permanence emerges. In early childhood, symbolic thought appears, but children often have trouble seeing things from another point of view. As elementary-age children enter concrete operational thinking, they can use logical reasoning with tangible objects, understand conservation, and organize information more effectively. In adolescence, reasoning becomes abstract and hypothetical, enabling systematic planning and testing of ideas.

These shifts are qualitative, not just more of the same reasoning. The learner actively constructs knowledge by organizing experiences into mental schemes and constantly adjusting them through assimilation and accommodation until reaching a comfortable balance, or equilibration. While this fits within the broader constructivist view that learners build understanding themselves, Piaget’s account is distinguished by the clear, stage-by-stage progression of cognitive abilities. In contrast, behaviorism focuses on observable behaviors and reinforcement, and sociocultural theories emphasize social interaction and cultural tools rather than a fixed sequence of cognitive stages.