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From the last question! which of the following is the independent Variable In experiment A: The presence of the headache B: the experimental drug C: The placebo D: the medical researcher.
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From the last question! which of the following is the independent Variable In experiment A: The presence of the headache B: the experimental drug C: The placebo D: the medical researcher.

User Erik Godard
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6.2k points

1 Answer

5 votes

Answer:

B

Step-by-step explanation:

The experimental drug has a direct effect on the dependent variable which is the presence of the headache.

User NeedACar
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