Hypnosis is often confused with Mesmerism, its historical precursor. As Hans Eysenck writes,
According to the authors this was an intentional underestimation
. Their professed aim was to discover whether, even under the most skeptical weighing of the Visit evidence, hypnotherapy was still proven effective. They showed conclusively that it was. In fact, their analysis of treatment designs concluded that expansion of the meta-analysis to include non-randomized trials for this data base would also amount reliable results.
