Question

To test the effectiveness of two different drugs for depression, an individual who is not involved in conducting the experiment or analyzing the results codes the labels so that neither the experimenter nor the participants know which group of participants received which drug. This experiment MOST clearly involves:

Answer 1

The experiment involves a double-blind experiment to test the effectiveness of different drugs for depression.

Step-by-step explanation:

In this experiment, the coding of labels to keep the experimenter and participants unaware of which group received which drug is an example of a double-blind experiment. Double-blind experiments are commonly used in clinical trials to prevent bias and ensure accurate results. By keeping both the researchers and the participants blind to group assignments, any differences in outcomes can be attributed to the drug itself rather than expectations or biases.