Brief modification of suggestibility and hypnotic analgesia: too good to be true?

A 10-minute training procedure, based on the Carleton Skill Training Program, has previously been reported to produce substantial increments in responsiveness to hypnotic suggestion. The authors attempted to replicate this effect and also assessed the impact of the training procedure on hypnotically suggested analgesia. Ninety-eight students who had been preselected for high, medium, and low levels of initial suggestibility were randomly assigned to experimental and control groups. Training failed to increase overall suggestibility scores or to enhance the effects of a suggestion for pain reduction. Suggested pain reduction was more highly correlated with posttreatment suggestibility scores than with pretreatment suggestibility and, in a regression analysis, only posttreatment suggestibility predicted pain reduction uniquely.