Question

Choose the answer that correctly fills in the blanks. A headache study tests the effectiveness of aspirin. Five adults in the study were given aspirin and five other adults were given a sugar pill. The people given the sugar pill were the ________ group, and the sugar pill is called the ________.

1) Placebo, control
2) Control, placebo
3) Experimental, control
4) Control, experimental

Answer 1

The correct answer is 2) Control, placebo. The control group receives the placebo, a sugar pill with no therapeutic effect, to provide a baseline for comparison with the effects of the aspirin on the experimental group.

Step-by-step explanation:

The correct answer that fills in the blanks in the question is 'The people given the sugar pill were the control group, and the sugar pill is called the placebo'. So the answer is choice 2) Control, placebo. In a clinical study, the control group receives a placebo to ensure that any effects on the subjects are due to the drug being tested and not due to expectations or biases. A placebo is a substance with no active therapeutic effect, often used as a control in randomized controlled trials to test the efficacy of another substance (such as a drug). The placebo serves as a baseline to compare the effects of the actual drug on the experimental group.