Formal Operational Stage:This is the final stage in Piaget's theory of cognitive development where adolescents begin thinking abstractly and reasoning about hypothetical problems.
Metacognition:This refers to one's ability to think about their own thinking. It improves during adolescence allowing teenagers to plan, monitor and assess their understanding and performance.
Egocentrism in Adolescence: This is a state of self-absorption where the world is seen only from one's own perspective. It often peaks during early adolescence but gradually declines as cognitive maturity increases.