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Psychology Glossary

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   A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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Placebo (placebo effect)
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Placebo (placebo effect): A placebo is any substance that is not known to
have any pharmacological effects (produces no meaningful changes in an
oranism, either chemical, biological, etc.) that is made to look like an
active ("real") drug. Sometimes the act of taking a pill produces an effect
if the person believes the pill is active. To compensate for this, scientists
often give placebos to determine if an effect is due to the "real" drug or
from the act of just taking a pill. For additional information, see Control
Condition.


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