Which of these is NOT a factor that may lead to different conclusions from two different studies investigating the same thing (eg., the relationship, if any, between caffeinated coffee and memory)?
a. different amounts of caffeine
b. different sample sizes using a control group
c. different ways of evaluating memory (eg., long-term vs. short-term memory)
d. different types of participants (eg., participants of different ages or professions)
e. using a control group
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Which of these is NOT a factor that may lead to different conclusions from two different studies inv...
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