Early in his career, Piaget derived his ideas about cognitive changes during the first two years by
A) conducting clinical interviews.
B) engaging in rigorous experiments.
C) observing his own three children.
D) summarizing baby biographies.

Question

Quizplus · Accepted Answer

Piaget observed his own three children and used his observations to derive his ideas about cognitive development during the first two years.

Early in His Career, Piaget Derived His Ideas About Cognitive