Which of the following is is sometimes called a "third force" that developed as a reaction against the pessimism of Freudian theories and the mechanical nature of learning theories?

Which of the following statements regarding the Big Five's relation to survival is true?

a. All of the traits except extraversion foster survival and reproduction. b. All of the traits have some aspects that are helpful and also harmful to survival. c. Neuroticism has no helpful link to survival. d. There is no correlation between the Big Five traits and survival.

The highly addictive depressants of opium, morphine codeine, and heroin are classified as

Fill in the blank with correct word