Final answer:
Psychologists Jean Piaget and Erik Erikson developed theories of cognitive and psychosocial development that can help you understand your own life.
Step-by-step explanation:
Psychologists Jean Piaget and Erik Erikson developed theories of development that explain how humans grow and change throughout life.
Piaget's theory focuses on cognitive development, describing four stages that individuals go through from infancy to adulthood.
Erikson's theory focuses on psychosocial development and describes eight stages that individuals move through from birth to death.
Using this information, you can better understand your own life by recognizing the different stages of development you have gone through and the challenges and tasks associated with each stage.
It can help you gain insight into your cognitive abilities, social interactions, and sense of self at different points in your life.