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A General Factor of Hypnotizability Revealed by Confirmatory Factor Analysis
Kimberly Zimmerman1, Vindhya Ekanayake1, Cameron T Alldredge1
1Mind-Body Medicine Research Laboratory, Department of Psychology and Neuroscience, Baylor University, Waco, TX, USA.
None:
The objective of this study was to determine the model fit of a standardized hypnotizability measure in a targeted clinical sample. The Stanford Hypnotic Susceptibility Scale, Form C (SHSS:C) was administered to 168 post-menopausal women aged 39 to 75 years. Confirmatory factor analysis was conducted, and comparative fit index (CFI) and root mean square error of approximation (RMSEA) were used to determine goodness of fit. Results indicated that the single-factor structure modeled with twelve indicators based on the individual items on the SHSS:C provided the best description of fit. Results of the present study demonstrate that the SHSS:C has a single-factor structure. These findings suggest that new scales of hypnotizability can be optimized by focusing on the use of items that correlate highly with the overall score representing the unidimensional construct of hypnotizability. The findings should be interpreted with caution due to the small sample size, and further research is needed with other populations to clarify generalizability.
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