Question: A psychiatrist is interested in determining if the condition of individuals suffering from anxiety improves with either 20 or 40 milligrams of a new drug. She administers 20 milligrams to a random half of her clients and 40 milligrams to the other half. She finds that, after six months, the clients who took 40 milligrams of the drug are significantly less anxious than those clients who took 20 milligrams of the drug. Which type of study did the psychiatrist conduct? Need Assignment Help? Group of answer choices hypothetical research controlled research experimental research correlational research