The WAIS and Rorschach test in diagnosing borderline personality.

Area of Science:

• Psychology
• Psychiatry
• Clinical Assessment

Background:

• Differentiating between borderline and psychotic personality organization is crucial for effective psychiatric treatment.
• Kernberg's structural interview provides a framework for this diagnosis.
• Objective assessment tools are needed to complement clinical interviews.

Purpose of the Study:

• To determine if Rorschach and WAIS indicators can reliably discriminate between borderline and psychotic personality organization.
• To identify specific subtests or measures that are most effective in this differentiation.
• To compare the discriminative power of psychological tests with traditional clinical assessments.

Main Methods:

• Utilized Kernberg's structural interview to diagnose psychiatric inpatients.
• Administered the Rorschach and the Wechsler Adult Intelligence Scale (WAIS).
• Analyzed specific indicators from both tests, including Rorschach form level and WAIS Picture Completion subtest scores.

Main Results:

• A combination of WAIS Picture Completion scores and Rorschach form level effectively discriminated between the two diagnostic groups.
• These discriminative indicators were interpreted as reflecting reality testing abilities.
• A linear combination of WAIS scale scores achieved discriminative power comparable to combined WAIS-Rorschach clinical comparisons.

Conclusions:

• Specific Rorschach and WAIS measures, particularly those related to reality testing, are valuable in distinguishing between borderline and psychotic personality organization.
• Objective psychometric data can support and potentially enhance clinical diagnostic accuracy.
• The findings suggest a more streamlined diagnostic approach using selected WAIS scores.