Posthypnotic Amnesia in Hypnotizability Assessment: Validation of a New Scoring System for the Hypnotic Induction Profile. The International journal of clinical and experimental hypnosis Faerman, A., Spiegel, D. 2021; 69 (1): 83–93


The Hypnotic Induction Profile (HIP) is a standardized assessment of hypnotizability featuring a validated 0-10 scoring system, that does not factor in posthypnotic amnesia. Using confirmatory factor analyses (CFA), we compared the 10-point scoring system with a new 12-point system that includes the posthypnotic amnesia item in independent samples of individuals with fibromyalgia (n =98) and healthy adults (n =97). Additionally, we explored associations of the two scoring systems with measures of hypnotic phenomena. CFA results indicate that the 12-point scoring system is a good fit for the 1-factor model of hypnotizability. Posthypnotic amnesia loaded highly on the model in the fibromyalgia sample, and moderately on the model in healthy adults. Furthermore, the 12-point scoring system correlated significantly with measures of hypnotic phenomena. We conclude that the 12-point scoring system is psychometrically equivalent yet conceptually more comprehensive than the 10-point scoring system.

View details for DOI 10.1080/00207144.2021.1834860

View details for PubMedID 33513058