Mental Operations Piaget. These studies were used to assess mental processes in children. The third eye problem.
Children in the formal operational stage are able to use abstract thought. Piaget s concrete operations a mental operation in the piagetian way of thinking is the ability to accurately imagine the consequences of something happening without it actually needing to happen. Guilford there is also a cognitive approach to the subject as well.
He disagreed with the idea that intelligence was a fixed trait and regarded cognitive development as a process which occurs due to biological maturation and interaction with the environment.
Piaget s theory of cognitive development is a comprehensive theory about the nature and development of human intelligence it was originated by the swiss developmental psychologist jean piaget 1896 1980. Mental operations are operations that affect mental contents. The third eye problem. The formal operational stage is the final stage of piaget s theory of development.