Which school of psychology most strongly believes that we can learn a lot about ourselves by studying nonhuman animals?

In studies that show that children can connect concepts to behavior—and vice versa—when children aged 4 to 5 are told that a girl in a story is “unselfish,”

a. they don’t like her. b. they want to help the girl. c. they automatically disagree. d. they can predict that she will share with other children.

Mariposa just called out to her son Lou by saying his name to him. Lou just turned and looked in his mother's direction, demonstrating recognition of his own name. How old would you say that Lou must be?

a. 1 or 2 months old b. 2 or 3 months old c. 3 or 4 months d. 4 or 5 months