Social Studies, 12.02.2020 00:07, idk1561

In a study on the effects of caffeine on memory, participants drank a bottle of tasteless water containing 100, 50, or 0 milligrams of caffeine. Neither the researcher who handed out the bottled water nor the study participants knew whether the water contained caffeine or not. This is an example of a study.

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In a study on the effects of caffeine on memory, participants drank a bottle of tasteless water cont...