Which of the following is not a characteristic of the concrete operational stage of cognitive…

In Jean Piaget's theory of cognitive development, the concrete operational stage (ages 7 to 11 years) is characterised by the decline of egocentrism ("Objectivity"), logical "Reasoning" about concrete objects and events, and "Classification" and seriation. "Abstract concept formation" and hypothetical-deductive thinking develop later during the formal operational stage (from age 11 onwards).