Author Question: Dr. Ayala conducts an experiment where she gives half her participants a yellow pill containing a ... (Read 88 times)

LCritchfi · **on:** Jun 19, 2018

Dr. Ayala conducts an experiment where she gives half her participants a yellow pill containing a drug that keeps them awake during psychology lectures. She gives the other half of her participants an identical-looking yellow pill that does not contain the drug. This experimental design controls for ____.

a. experimenter bias
b. random variables
c. a placebo effect
d. confirmation bias

Question 2

To minimize the impact of random variables on an experiment's results, researchers commonly use ____.

a. exit surveys
b. random assignment
c. a placebo
d. a control group