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Option 4 : I, II, III and IV
Jean Piaget, a swiss psychologist, who belonged to the cognitive school of psychology, is famous for his work on child development. He made a systematic study of cognitive development in his theory that is categorised in four stages. The stages are explained below:
|
Stages |
Characteristics |
|
Sensorimotor (0-2 years) |
Infant explores the world by coordinating sensory experiences with physical actions. |
|
Preoperational (2-7 years) |
Symbolic thought develops; object permanence is established; the child cannot coordinate different physical attributes of an object, use words and pictures to represent an object |
|
Concrete operational (7-12 years)
|
The child can reason logically about concrete events and classify objects into different sets. He can perform reversible mental operations on representations of objects. |
|
Formal operational (12-15 years) |
The adolescent can apply logic more abstractly; hypothetical thinking develops |
Hence, we conclude that all the above point are from Piaget's theory of cognitive development.