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DrKim Varies the Amount of Caffeine Given to Three Groups

Question 35

Multiple Choice

Dr.Kim varies the amount of caffeine given to three groups of participants (0,100,and 200 mg) and then observes the anxiety level for each group.The 0-mg condition represents the ____ group.


A) ​experimental
B) ​manipulation check
C) no-treatment control
D) ​waiting-list control

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