According to Tilburt and colleagues (2008),_____ of American physicians believe placebos are beneficial and prescribe them to their patients.
As part of a study,Lina was given a sugar pill that should not cause any harm.However,after taking the pill,Lina reported uncomfortable side effects.In this scenario,a _____ response occurred.
Fabrizio Benedetti found that _____ injections of placebos were more effective in reducing pain than _____ injections.
A) hidden; visible
B) visible; hidden
C) predictable; unpredictable
D) unpredictable; predictable
The traditional Chinese medicine in which fine needles are inserted into the skin in order to relieve pain is: