Ten-Year-Old Chester Has Just Been Asked, "What Is 10 Plus

Multiple Choice

Ten-year-old Chester has just been asked, "What is 10 plus 10?" He says, "The answer is 22." How would a researcher best use Piaget's clinical method to follow-up this response?

A) She would ask Chester to count the number of fingers on each hand.
B) She would ask Chester to explain how he came up with the answer of "22."
C) She would ask Chester to describe any abuse he had endured as a child.
D) She would ask Chester to give a blood sample.