Chi-square is used to tell whether _____
a. one variable causes another
b. a sample is representative of a population
c. a random sample is big enough
d. two variables are related or independent
D
Chi-square is used to tell whether two variables are related in some way, but not causally.
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Which of the following is NOT a typical way of reducing cognitive dissonance?
What accounts for the increased risk of having car accidents in teenagers?
A. peer pressure B. the brain area involved in attention and perception is not fully developed C. the brains of teenagers are more sensitive to the neurotransmitter dopamine D. the areas of the brain that are responsible for judgments and controlling impulses are not fully developed
_____ occurs when information learned later impairs memory for information acquired earlier.
A) Retroactive interference B) Retrograde amnesia C) Proactive interference D) Anterograde amnesia
A piece of paper looks white in both the noonday sun and under moonlight, even though there is less light being reflected off the paper under moonlight. This form of perceptual constancy is called ____
a) size constancy. b) shape constancy. c) brightness constancy. d) color constancy.