Structural analysis of the harvard group scale of hypnotic susceptibility, form A

Publisher Website
Google Scholar
Abstract
Multiple samples of Ss were tested on the Harvard Group Scale of Hypnotic Susceptibility, Form A (HGSHS:A) of Shor and E. Orne, (1962) to examine the nature of the dimensions underlying the scale. Data were analyzed by the principal components method, the alpha factoring technique, and the Rasch model of analysis. The Basch model was used to specifically test the hypothesis that HGSHS:A measures just one dimension with items varying along a difficulty continuum. Results indicated that either a 2- or 3-factor solution is appropriate to HGSHS:A and that performance on the test cannot be explained in terms of a single dimension even when item difficulty is taken into account. Greatest instability of structure across both samples and methods of analyses was evident for the cognitive-delusory items on the scale. Implications for hypnotic theory and test construction are discussed.

This publication has 12 references indexed in Scilit: