As khh said, that's why you have a control group. The people on 200mg of caffeine were 3 times more likely to hear it than the people who weren't on caffeine. So unless caffeine makes you more suggestible, there's a pretty clear link. |
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As khh said, that's why you have a control group. The people on 200mg of caffeine were 3 times more likely to hear it than the people who weren't on caffeine. So unless caffeine makes you more suggestible, there's a pretty clear link. |
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