Questions: Select the term which best describes the following scenario. A new painkiller is studied. A group of people with chronic pain participating in the study are administered the drug. Answer single-blind experiment control group treatment group placebo effect

The answer is "treatment group."

Explanation for each option:

1. Single-blind experiment: This refers to an experimental setup where the participants do not know whether they are receiving the treatment or a placebo, but the researchers do. The scenario does not provide enough information to determine if the study is single-blind.

2. Control group: This is a group of participants that does not receive the experimental treatment and is used as a benchmark to measure how the other tested subjects do. The scenario specifically mentions that the group is administered the drug, so they are not a control group.

3. Treatment group: This is the group of participants that receives the experimental treatment, in this case, the new painkiller. The scenario describes a group of people with chronic pain who are administered the drug, fitting the definition of a treatment group.

4. Placebo effect: This refers to the phenomenon where participants experience a perceived or actual improvement in their condition after receiving a placebo, which is an inactive substance. The scenario does not mention a placebo or the effects of one.

Summary: The term that best describes the scenario where a group of people with chronic pain is administered a new painkiller is "treatment group."