Determine if the following scenario is an observational study or a controlled experiment. A doctor is interested in determining whether a certain medication increases the risk of high blood pressure. He randomly selects 100 people for his study - 50 who will take the medication, and 50 who will take a placebo. He checks the patients' blood pressures weekly for six months.
A)Observational study
B)Controlled experiment
C)Neither

Question

Quizplus · Accepted Answer

This scenario is a controlled experiment because the doctor is actively manipulating the conditions (medication vs. placebo) and then observing the outcomes (changes in blood pressure).

Determine If the Following Scenario Is an Observational Study or a Controlled