An experiment has dependent and independent variables. The dependent variable is the one that is being studied and responds to the independent variable.
In the given experiment, the effect of a new drug is being studied on blood pressure. Here, the blood pressure (systolic and diastolic blood pressure) is supposed to change in response to drug treatment.
So, blood pressure is a "dependent variable" while the drug treatment is "independent variable".
Explanation: When going to an interview you never want to be too early or late at all. If his car breaks down he might be angry or frustrated. I’ve never met a person who becomes happy when something bad happens.
