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Home Q & A Board Science-Related Homework Help Psychology
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KENHUYNH96 KENHUYNH96
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6 years ago
Professor Stevenson and his colleagues observed the motor behavior of children following the administration of a drink with food additives or a drink without the additives. Neither the children nor their observers knew which kind of drink each consumed. This experimental procedure is designed to control for
 
  a. placebo effects.
 b. tolerance.
 c. withdrawal.
 d. the likelihood that some of the children might have attention deficit hyperactivity disorder.
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Ca1234Ca1234
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6 years ago
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KENHUYNH96 Author
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6 years ago
You make an excellent tutor!
cipcal
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Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
shangshang
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2 hours ago
This helped my grade so much Perfect
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