If H1 is nondirectional one must evaluate the probability of getting the obtained result or a result more extreme in both directions to properly test H0

_____ is administered to people who have experienced trauma, in order to ward off posttraumatic stress disorder (PTSD)

A) Crisis debriefing B) Catharsis C) Proactive coping D) Psychoanalysis

You are interested in reports of efforts to increase sales of popcorn and soft drinks in movie theaters by inserting subliminal messages in the film. What will you conclude after you review the available evidence?

a) Sales of popcorn increased but not sales of soft drinks. b) The effect works only when the movies are high action thrillers. c) No convincing evidence of a subliminal effect on sales has been presented. d) The effect is powerful and consequently has been ruled illegal by the courts.