In Piaget's theory, which statement best describes the cognitive abilities typical of formal operational thinkers (around adolescence)?

• A. Able to reason abstractly and understand relationships
• B. Relies solely on trial-and-error
• C. Egocentric and unable to conserve
• D. Focused only on concrete objects

Answer: (A)

Adolescents entering the formal operational stage can think abstractly and understand relationships between ideas, not just what they can see or touch. They build hypothetical-deductive reasoning: form hypotheses, deduce consequences, and reason through possibilities without needing concrete examples. This allows them to analyze how changing one variable affects another, consider abstract concepts like justice or probability, and plan steps to test ideas methodically.

This goes beyond what younger stages can do. Earlier thinking often relies on concrete objects and real experiences, and problem-solving might lean on trial-and-error or a single perspective. The option describing abstract reasoning and understanding relationships best captures the essence of formal operational thought.