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DrJohns Is Studying the Effects of Caffeine on Memory

Question 42

Multiple Choice

Dr.Johns is studying the effects of caffeine on memory.After comparing the subjects taking a placebo with those taking caffeine pills he concludes that caffeine enhances memory.He most likely used _____ to determine the difference between groups.


A) descriptive statistics
B) inferential statistics
C) probabilities of test scores
D) none of these

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