Which Child Is MOST Likely to Have the Best-Developed Theory

Multiple Choice

Which child is MOST likely to have the best-developed theory of mind?

A) Nanette, age 3, who is the oldest of three children
B) Brianna, age 4, who is an only child
C) Boris, age 3 1/2, who has a twin sister
D) Reginald, age 3 1/2, who has two older siblings