activity 2 of 6: variables\nheadache relief\na pharmaceutical company wants to test a new drug. they believe…

activity 2 of 6: variables\nheadache relief\na pharmaceutical company wants to test a new drug. they believe it will help in reducing the frequency of migraines.\nresearchers gather two groups of one hundred migraine sufferers. the first group is given the new drug. the second group, however, is given a placebo—sugar pills.\nneither group knows whether or not it has\nidentify the dependent and independent variables of this experiment.\nindependent variable\nselect...\ndependent variable\nselect...

activity 2 of 6: variables\nheadache relief\na pharmaceutical company wants to test a new drug. they believe it will help in reducing the frequency of migraines.\nresearchers gather two groups of one hundred migraine sufferers. the first group is given the new drug. the second group, however, is given a placebo—sugar pills.\nneither group knows whether or not it has\nidentify the dependent and independent variables of this experiment.\nindependent variable\nselect...\ndependent variable\nselect...

Answer

Brief Explanations:

The independent variable is what the researcher manipulates. Here, the pharmaceutical company manipulates whether the group gets the new drug or a placebo, so the independent variable is "drug treatment (new drug or placebo)". The dependent variable is what is being measured or affected, which is the frequency of migraines (since the company wants to see how the drug affects migraine frequency).

Answer:

Independent variable: drug treatment (new drug or placebo) Dependent variable: frequency of migraines