CROSS-VALIDATION OF THE HYPNOTIC INDUCTION PROFILE FACTOR STRUCTURE -SIMULTANEOUS CONFIRMATORY FACTOR-ANALYSIS OF 2 PUBLISHED SAMPLES

This study cross-validated factor structure and psychometric character istics of the Hypnotic Induction Profile (HIP). Earlier studies identi fied two constructs of the HIP, but their methodology did not allow em pirical confirmation of the number of factors. I have used a new metho dology, confirmatory factor analysis, and submitted the data from the previous studies to a simultaneous, multisample, factor analysis. The results showed that the HIP indeed consists of two factors. Although t he HIP two-factor model is statistically adequate, 7 of the 10 scales have very low item reliability. Issues of measurement error and clinic al implications of the study are also discussed in relation to the cur rent findings.