Final answer:
The final paragraph of the article suggests that the placebo effect can have a powerful influence on the outcome of an experiment. The placebo effect refers to the phenomenon where the belief or expectation of receiving a treatment can lead to actual improvements in a person's health, even if the treatment itself is inert or has no therapeutic effect.
Step-by-step explanation:
The final paragraph of the article suggests that the placebo effect can have a powerful influence on the outcome of an experiment. The placebo effect refers to the phenomenon where the belief or expectation of receiving a treatment can lead to actual improvements in a person's health, even if the treatment itself is inert or has no therapeutic effect. This means that our beliefs and perceptions can play a significant role in our health outcomes.