The Cognitive Stages According to Piaget

Piaget’s cognitive stages form a theoretical framework within developmental psychology. Piaget studied child development based on a very small sample of three children, his children Laurent, Lucienne, and Jacqueline. He followed their progress intently from birth to the end of their childhood. However, the conclusions he reached about later development were drawn from studying thousands of children. Piaget devoted himself to observing his children with his wife Valentine. They combined the method of naturopathic observation with experimental manipulation. A limited sample Many people have stated that the sampling used by the author is a significant limitation of his method. We…