Piaget’s stages of development include sensorimotor, preoperational, concrete operational, and formal operational. While there is some criticism of them, they may help characterize child development.

The physical development of kids is easy to track. You can measure their height, weight, strength and ability to control their bodies. What is complex is to determine cognitive and intellectual ...

Jean Piaget’s theory of cognitive development has been a central framework for understanding how children grow and learn. His model describes development through four sequential stages: sensorimotor, ...

Jean Piaget (1896-1980) always considered himself a natural scientist, not a psychologist. As a boy he quickly gave up play and pretend to take refuge in "work" -- exploring internal combustion ...

Vol. 89, No. 6, SPECIAL SECTION: Meta-analysis and Individual Participant Data Synthesis in Child Development (NOVEMBER/DECEMBER 2018), pp. 2288-2302 (15 pages) In 1997, I argued that with the loss of ...