Surveys provide yet another avenue for assessing benefits of therapies. The medical profession tends to rate these as being of lesser value, due to the belief that self-assessments will be riddled with Type I errors. Surveys are thus frequently dismissed as "purely subjective evidence."

Yet it is the consumers of the therapies who are increasingly voting with their feet and dollars for the therapies that they find helpful to themselves, and increasing numbers of people are choosing complementary therapies such as spiritual healing.

The range of satisfaction in the surveys of healee responses to spiritual healing is between 79 and 91 percent. This is substantially greater than would be expected from most placebo responses, where improvements are generally in the range of 30 percent.