Correlation of the Rorschach Method and the NEO PI-R Questionnaire

Abstract

The aim of the study was to determine the convergent value of two instruments for personality evaluation. The conceptual and empiric correlation of two indicators of the projective method and self-report questionnaire were studied. The Rorschach method as interpreted by the Comprehensive System is considered atheoretical, while the NEO PI-R questionnaire is based on the Five-Factor Model of personality. Therefore, the correlation between the Rorschach method and Five-Factor personality theory has been investigated indirectly. The sample comprised 200 psychiatric patients, 100 nonpsychotic patients (mostly anxious-depressive) and 100 psychotic patients (mostly schizophrenic). Analysis of the results used correlation analysis, factorial analysis, canonical correlation analysis, canonical analysis of covariance, and asymmetric redundancy analysis. Identification of aberrant objects was applied for qualitative interpretation of the results. The obtained results have shown that, although numerous conceptual similarities between indicators of the two instruments have been recognized, their convergent validity is low. Possible causes of the low convergent validity and recommendations for further studies are proposed.

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