Which capability emerges in the formal operational stage?

• A. Abstract and hypothetical thinking
• B. Egocentrism
• C. Conservation of liquid
• D. Motor coordination

Answer: (A)

In Piaget’s theory, the formal operational stage brings the ability to think abstractly and reason with hypothetical situations. Adolescents can work with ideas that aren’t tied to concrete objects, systematically test hypotheses, and consider multiple possibilities or outcomes. They can perform deductive reasoning, drawing conclusions from general principles to specific cases, and they can discuss abstract concepts like justice, liberty, or probability in a structured way.

Egocentrism is associated with earlier stages, where a child has difficulty seeing perspectives other than their own; it diminishes as reasoning becomes more sophisticated. Conservation of liquid is a feature of concrete operational thinking, where quantity remains the same despite changes in container shape. Motor coordination concerns physical development and is not the defining cognitive change of the formal operational stage.