Egocentrism is characterized by one-dimensional thinking

You're reading an article about how recent research has shown that infants are much more sophisticated than was previously thought. Although several different types of psychologists may have written it, the author is most likely a ________ psychologist

a. health b. clinical c. developmental d. human factors

Regarding the relationship of personal factors to happiness, which of the following statements is TRUE?

a. Life satisfaction and happiness decline with age. b. Single people are happier than married people. c. There is a strong positive association between wealth and happiness. d. There is a small positive association between happiness and holding spiritual beliefs.