Which theorist is associated with assimilation and accommodation in cognitive development?

• A. Gardner
• B. Vygotsky
• C. Piaget
• D. Spearman

Answer: (C)

Understanding how children adapt their thinking as they encounter new information is central. Piaget described cognitive development as a process driven by equilibration, with two core mechanisms: assimilation and accommodation. Assimilation means fitting new experiences into existing schemas—for example, a child who has a "dog" schema might call a stray four-legged animal a dog. Accommodation happens when the child adjusts those schemas to reflect reality, learning that a cat is different and creating a separate category for "cat" in addition to "dog." Through these ongoing adjustments, a child’s thinking becomes more accurate and complex, which is the essence of Piaget's theory. Other theorists—Gardner, Vygotsky, Spearman—focus on different aspects of development, so assimilation and accommodation are specifically linked to Piaget.