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Psychoactive Drug Effects
Grade Level
AP Psychology
AP.078 Psychoactive Drug Effects
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A participant expects a drug to calm them, reports feeling calmer after a placebo, but shows no change in heart rate or muscle tension. What is the best conclusion?
A
The placebo must have blocked GABA receptors to create sedation.
B
The result proves all psychoactive drug effects are placebo effects.
C
Expectancy may have influenced the psychological report, while physiological measures did not show the same pattern.
D
The participant's self-report is impossible to interpret because psychological measures are never valid.
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