How do we test the placebo effect to know it exists?

Question

If we give half the patients a placebo, then what do you give the control group?

In: 0

Answer 1

Start with a known product that 100% of the time causes a certain effect for every single person who uses it always. That would be the anti-placebo. Don’t tell either group what the expected results are and it will be extremely apparent if the placebo has any effect at all.