James believed that a positive attitude was more than useful, it was

Erica's parents are concerned about her frequent tantrums. After consulting a parenting handbook, they decide to apply Skinner's theory of positive reinforcement, by praising and rewarding her for good behavior

In particular, the theory allows them to predict that Erika A) will sleep better at night. B) will develop better language skills C) will have fewer tantrums. D) will improve her reading ability.

Until your recent hospitalization, you thought that the insurance provided by your company was a good plan. However, after numerous phone calls to your company representative and to the insurance company, you now favor a national health care plan. This attitude shift is due to

a. an interaction with others. b. direct contact. c. the mean worldview. d. group membership.