Behavioral and subjective scoring of the Harvard Group Scale of Hypnotic Susceptibility: further data and an extension.
The American journal of clinical hypnosis January 1996 V K Kumar, G Marcano, R J Pekala
The present study replicated and extended Kirsch, Council, and Wickless's work evaluating the reliability and concurrent validity of a subjective response scale developed for the Harvard Group Scale of Hypnotic Susceptibility. Consistent with Kirsch et al.'s findings, the subjective counterpart of the Harvard scale demonstrated high reliability (coefficient .90) and concurrent validity (r = .84...