A saline (salt water) injection is 70 percent as effective as morphine is in reducing pain. What does this strongly suggest?

Name: A saline (salt water) injection is 70 percent as effective as morphine is in reducing pain. What does this strongly suggest?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The fact that a saline injection, which has no pharmacological pain-relieving properties, is 70% as effective as morphine suggests that the placebo effect, where a patient's condition improves due to their belief in the treatment, is powerful.

A Saline (Salt Water) Injection Is 70 Percent as Effective