Question

A certain disease is classified into 444 stages that distinguish how developed the disease is. Researchers studying a new potential treatment recruited over 100100100 patients with varying stages of the disease for their study. Half of the patients with stage 111 were randomly assigned to receive the new treatment, and other half of stage 111 patients received a placebo. A similar strategy was used for patients in each of the other stages.

What type of experiment design is this?

Answer 1

The experiment design described is a randomized controlled trial where participants are randomly assigned to different groups to receive treatment or a placebo.

Step-by-step explanation:

The experiment design described in the question is a randomized controlled trial. In this type of experiment, participants are randomly assigned to different groups, with one group receiving the treatment and another group receiving a placebo or control. This random assignment helps to eliminate bias and ensures that any observed differences between the groups can be attributed to the treatment. This design involves dividing participants into treatment and placebo groups in a random manner, which helps reduce selection bias and increase the reliability of the results. In the scenario, half the patients at each stage of the disease are assigned to receive the new treatment while the other half receive a placebo, mirroring the conditions of a controlled study, where the effects of the treatment can be compared directly to those of a placebo.

In this case, the researchers recruited over 100,100,100 patients with varying stages of the disease. Half of the patients with stage 111 were randomly assigned to receive the new treatment, while the other half received a placebo. The same strategy was used for patients in each of the other stages.