Dr. Cunningham finds that people who take herbal supplements that profess to improve memory scored, on average, 15 percent higher on a memory test relative to groups who did not take herbal supplements or placebos. However, other researchers have tried to study this effect and have not duplicated his findings. What principle of critical thinking does this example demonstrate?

Question

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This example demonstrates the principle of replicability, as other researchers have not been able to replicate Dr. Cunningham's findings. This emphasizes the importance of being able to replicate results in order to establish the validity of a study's findings.

Dr Cunningham Finds That People Who Take Herbal Supplements That