​Several years ago, a major ketchup manufacturer experimente…

​Several years ago, a major ketchup manufacturer experimented with selling ketchup in different colors, including green, purple, and others. The idea was that kids would be excited by different colors, even though extensive blind taste tests indicated that the flavors of the different products were identical. The product failed and was discontinued after only a few years. Children just did not seem to be able to accept that it was still ketchup even though it was not red. This sort of reliance on the appearance of an object is most typical of ____ children.

​Three-year-old Maxim is playing with his toys happily as hi…

​Three-year-old Maxim is playing with his toys happily as his mother is watching a movie. He looks up to see a few tears running down his mother’s cheeks, because a sad scene just occurred in the film. He puts down his toys, climbs up next to his mother, and lays his head on her arm. When she asks him what’s wrong, he says, “I’m sad, Mommy.” Maxim has demonstrated the capacity to experience

​Jack and Jill are twins. Because he is a boy, Jack’s parent…

​Jack and Jill are twins. Because he is a boy, Jack’s parents encourage him to run. However, they discourage Jill from engaging in athletic activity. As a result, Jack is much faster at running up a hill than Jill. The difference in Jack and Jill’s behavior is best explained by