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Biology, 23.03.2020 17:26 NeverEndingCycle
A researcher would like to determine the effect of caffeine on memory. Participants are randomly assigned to receive a caffeine pill or a sugar pill. Both groups complete a recall task that assesses their memory. However, even those who received the sugar pill had a small increase in memory. This is likely due to: a. The placebo effect b. The correlational approach to the study c. The participants becoming smarter d. The experimental effect
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