Relationships between behavioural responsiveness to hypnotic suggestions and estimates of hypnotic depth following 11 sequential instances of hypnosis

100 female clients (aged 18–66 yrs) participated in a weight control program and were initially assessed on the Harvard Group Scale of Hypnotic Susceptibility. Behavioral responsiveness to suggestions and hypnotic depth assessments were followed by 10 weekly standardized hypnotic experiences. Correlations were calculated between behavioral responsiveness, initial and subsequent depth estimates, and between successive trance depth estimates. Levels of trance depth estimates increased through Weeks 1 to 11. Significant positive correlations were found between behavioral responsiveness scores and trance depth estimates to the 4th week but not beyond, and between successive estimates of trance depth except for the correlation between estimates for the 4th and 5th weeks. Results are discussed in terms of the estimates of trance depth being attributions from self-observations of behavioral responsiveness to hypnotic suggestions.