Derek’s grades and test scores were not great so he will need to go to community college before he can transfer to a four-year college. According to Piaget’s theory of cognitive development, Derek would be in the formal operational stage. Derek can use logic and focus on different possibles. Derek is in early adulthood and Freud would consider him in the genital stage of psychosexual development. He has a girlfriend and is interest in a mature sexual relationship. Derek also is considered to be in Erikson's identity vs role diffusion stage of social development. . He is self aware of the roles in society but it is still unsure what he wants to do with his life. Derek’s behaves in a way to win the approval of others and always obeys society rules because it is the right thing to do . This would put him in level 2 conventional morality according Kohlberg. It is important to consider all of these theories to understand how Derek developed over …show more content…
A swiss psychologist Jean Piaget states to obtain knowledge through sensation and perception. He came up with four universal stages which are sensorimotor, preoperational, concrete operational and formal operational. The first stage is sensorimotor stage which Piaget states is the major stage of cognitive development. The second stage of cognitive development is preoperational stage. This stage is from age two to seven years old. This stage develops mental reasoning and symbolic thinking (Feldman, 2017). This stage is a period when a child will increase use of language and thinking. For example, Derek may see his mothers keys and say “go to the store”. The third stage of cognitive development is concrete operational stage. This stage takes place from 7 to 12 years old. This stage a child will use logic. They could start to understand the relationship between time and speed ( Feldman, 2017 ). Their decisions are not only determined on appearance but with logical and cognitive reasoning. The last stage of Piaget’s cognitive development is formal operational stage. The stage is consider the start of adolescent which begins around the age of 12 years old. Jean Piaget’s stage of formal operational is a stage at which people develop the ability to think abstractly (Feldman, 2017) Adolescents are able to consider problems in the abstract rather than only in concrete