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UNITED KINGDOM NORMS FOR THE HARVARD GROUP SCALE OF HYPNOTIC SUSCEPTIBILITY, FORM A

Research output: Contribution to journalArticle

David A. Oakley, Eamonn Walsh, Ann Mari Lillelokken, Peter W. Halligan, Mitul A. Mehta, Quinton Deeley

Original languageEnglish
Pages (from-to)80-104
Number of pages25
JournalInternational Journal of Clinical and Experimental Hypnosis
Volume68
Issue number1
DOIs
Publication statusPublished - 2 Jan 2020

King's Authors

Abstract

The Harvard Group Scale of Hypnotic Susceptibility, Form A (HGSHS:A), is widely used as a measure of suggestibility to screen participants for research purposes. To date, there have been a number of normative studies of the HGSHS:A, the majority of which originate from Western countries. The outcomes of these Western studies are summarized, and variations in methodologies are described and discussed. Also reported are the psychometric properties of the HGSHS:A in a large contemporary United Kingdom (UK) sample. Overall, these UK results are consistent with the earlier Western norms studies in terms of response distribution and item difficulty, with only minor differences. The continued use of HGSHS:A as a screening procedure is supported, particularly if corrected for response subjectivity/involuntariness and with revised amnesia scoring. The HGSHS:A is also important as a potential measure of the broader trait of direct verbal suggestibility.

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