No agreement between the Rorschach and self-assessed personality traits derived from the Comprehensive System.

Area of Science:

• Psychology
• Psychometrics

Background:

• The Rorschach Comprehensive System (RCS) is a widely used projective test for personality assessment.
• Self-report measures are common in clinical psychology, but their alignment with projective techniques requires validation.

Purpose of the Study:

• To investigate the convergent validity of self-reported personality descriptions (SAPCS) with Rorschach Comprehensive System (RCS) measures.
• To determine if SAPCS statements, designed for maximal overlap with RCS interpretations, reflect the same psychological constructs.

Main Methods:

• Eighty psychiatric patients completed the Rorschach, MMPI-2, and rated 51 SAPCS self-descriptions.
• SAPCS statements were developed to align with RCS interpretive guidelines and patient self-perception.
• Correlations between SAPCS ratings and RCS measures were analyzed, with MMPI-2 validity scales as moderators.

Main Results:

• Despite efforts to align SAPCS with RCS, mean correlations indicated a lack of construct convergence.
• SAPCS statements did not measure the same constructs as the corresponding RCS variables.
• MMPI-2 validity scales and test interaction style did not moderate the relationship between RCS and SAPCS.

Conclusions:

• Self-reported personality descriptions, even when theoretically aligned with projective test interpretations, may not capture the same psychological constructs.
• The findings question the direct comparability of self-report data with RCS interpretations when using this method of statement construction.
• Further research is needed to understand the relationship between self-report and projective assessment methods in psychiatric populations.