Popular Mechanics, huhtikuu 1932
Red is the favorite color of infants, and the average baby will give a red toy preference over yellow, blue or green, which follow red in the order named. This is the conclusion of a psychologist who conducted a series of color experiments with children. As they grow older, they continue to prefer red until they reach school age when a preference for blue asserts itself, yellow dropping far from the scale. in adults, the general preference for blue is very strong, with yellow even lower as a choice color. The tests to show that color likes and dislikes are modified by age also indicated that infants respond to colors when only three months old.