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In an experiment the effect of caffeine on alertness in students with attention deficit disorder,the caffeine if the A. Dependent variable B. Experimental C. Extraneous variable D. Independent variable
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In an experiment the effect of caffeine on alertness in students with attention deficit disorder,the caffeine if the

A. Dependent variable
B. Experimental
C. Extraneous variable
D. Independent variable

User Shioban
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2 Answers

3 votes

Answer:

B

Step-by-step explanation:

User Tvdias
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6 votes
Caffeine is the independent variable actually
User Predrag Samardzic
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