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20-02-2024
Health

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A researcher would like to compare the effectiveness of two drugs to treat anxiety. He gives Drug A to a participant and then gives Drug B to that same participant 12 hours later. Unfortunately, Drug A is not fully out of the participant's system yet, so the study is contaminated by
a. response bias.
b. a carryover effect.
c. demand characteristics.
d. experimenter bias.

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