If a sample of only those people who have unusually high scores on A can be included in a study of the correlation between variables A and B, the correlation will be smaller due to __________

____ minorities are individuals who differ from the majority only in terms of their beliefs.

a. Double b. Triple c. Single d. Oppositional

Which of the following statements is FALSE regarding the advertising by psychic advisors?

a. No one has passed the preliminary tests set up by James Randi's Million Dollar Challenge to demonstrate psychic abilities under controlled conditions. b. Usually psychic advisor ads are promoted with a few testimonials and many unsupported claims. c. Unlike psychic advisors, stage mentalists do not use deception with their audiences or in their advertising. d. Psychic advisers promoted in TV commercials make use of the Barnum effect.