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Psychology Mcqs
Q
An experimenter conducts an experiments on the effects of a drug to control hallucinations. He declares the results to be “statistically significant,’ which usually means that:
AA. Even though appropriate statistics were used, no differences could be detected between experimental and control groups
BB. The results have important implications for theory or practice
CC. Differences between experimental and control group of this size occur by chance only 5 times out of 100 (or less)
DD. Differences between experimental and control groups were so large they could never occur by chance alone
Correct Answer:
C. C. Differences between experimental and control group of this size occur by chance only 5 times out of 100 (or less)
