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Cross validation of the Hypnotic Induction Profile factor structure: simultaneous confirmatory factor analysis of two
1Counseling Center, University of Maryland, College Park 20742-8111.
The American Journal of Clinical Hypnosis
|October 1, 1993
Summary
The Hypnotic Induction Profile (HIP) was validated using confirmatory factor analysis, confirming its two-factor structure. However, low reliability in most scales suggests potential measurement error and impacts clinical utility.
Area of Science:
- Psychology
- Psychometrics
Background:
- Previous research suggested a two-factor structure for the Hypnotic Induction Profile (HIP).
- Methodological limitations in prior studies prevented empirical confirmation of the HIP's factor structure.
Purpose of the Study:
- To cross-validate the factor structure and psychometric properties of the Hypnotic Induction Profile (HIP).
- To empirically confirm the number of factors within the HIP using advanced statistical methods.
Main Methods:
- Confirmatory factor analysis was employed.
- Data from previous studies were subjected to simultaneous, multisample factor analysis.
Main Results:
- The Hypnotic Induction Profile (HIP) was confirmed to consist of two factors.
- The two-factor model demonstrated statistical adequacy.
- Seven out of ten scales exhibited very low item reliability.
Conclusions:
- The study statistically validated the two-factor structure of the Hypnotic Induction Profile (HIP).
- Significant issues with item reliability across most scales were identified.
- The findings necessitate a discussion on measurement error and the clinical implications for HIP usage.