The Dependent Variable in this study is the "Amount of time until the pain was gone." This variable is what the researchers are measuring to see how effective each medication is in relieving headache pain. The other options are not being measured as outcomes; instead, they are factors involved in the study (e.g., the type of pain reliever is an independent variable, or the treatment being tested).
In a study about headaches, doctors gave patients Alieve, Tylenol, Advil, and Excedrin, to see which medication would relieve the headache pain the fastest. The doctors timed how long it took the medication to work. What is the Dependant Variable?
Amount of medication
Type of pain reliever
Type of headache
Amount of time until the pain was gone
1 answer
1 answer