the relationship between ABO blood groups and hypnotic susceptibility

Correlational research has been undertaken to explain the purpose of the association between ABO blood groups and hypnotic susceptibility. The Stanford Hypnotic Susceptibility Form (Form C), modified by John F Kilhstrom, with a Cronbach’s alpha coefficient of 0.95, was used to determine the associations between blood groups and susceptibility. In this study, a clustered random-sampling method was used to investigate the relationship between hypnotic susceptibility and blood-group type, using the Spearman Correlation Coefficient. The results indicate a statistically significant correlation, with a sample size of 40 (n=40), resulted in HS (Hypnotic Susceptibility) to be medium (x= 2.53), and a mean blood group of 2.40 (SDHS: 0.50; SDABO:1.33). The results and hypothesis are described, and support the suggestion of a strong association between blood groups and hypnosis.

All people are not all equally hypnotic, but recent studies indicate that different depths ofhypnosis exist among people demonstrating different characteristics. When it comes to the assessment of hypnotic susceptibility in people, it is usually presented in terms of high, low and medium. Previous research investigating susceptibility have suggested that 10% of the population would otherwise be categorized as high, 10% would be regarded as having a low hypnotic susceptibility, while the majority of the population (80%) would fall within the medium category (Hilgard & Philip, 1958) . Depth of hypnosis, as part of an individual’s hypnotic susceptibility, has been found to be dependent on several factors besides clinician skill, such as intelligence and gender (Ruskiet, 2004). With regard to reported genetic factors having impact on the depth of hypnotic trance, previous research has identified that if mothers are found to be susceptible to hypnosis, their children will then have a greater propensity for hypnotic susceptibility (Davis, 1931). A recent survey conducted (Hilgard, 1996) using the test-retest method of analysis, indicated responses to hypnotic characteristics as being relatively consistent in finding this relation.