If an event can occur five times out of 100, its probability value is

Turning socially unacceptable urges into socially acceptable behavior is known as:

a. projection b. displacement c. reaction formation d. sublimation

If you wanted to study the effects of caffeine on sleep, you could vary the consumption levels of caffeine. The administration of caffeine is

a. the treatment. c. unethical. b. the control. d. the dependent variable.