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Related Experiment Videos

Prediction of homicide with the Rorschach.

D Lester, J M Kendra, R A Thisted

    Journal of Clinical Psychology
    |October 1, 1975
    PubMed
    Summary

    Rorschach test variables accurately distinguished murderers from non-murderers. These findings offer a valuable tool for interpreting Rorschach results in criminal populations.

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    Area of Science:

    • Psychological assessment
    • Forensic psychology
    • Clinical psychology

    Background:

    • The Rorschach test is a projective psychological test.
    • Accurate assessment of criminal populations is crucial for legal and therapeutic purposes.

    Purpose of the Study:

    • To determine if specific Rorschach variables can differentiate between murderers and non-murderers.
    • To explore the utility of discriminant functions in forensic Rorschach interpretation.

    Main Methods:

    • Step-wise multiple discriminant analysis was employed.
    • Rorschach protocols from murderers and non-murderers were analyzed.
    • Specific variables (S, A, P, m) were examined for discriminatory power.

    Main Results:

    • The Rorschach variables S, A, P, and m demonstrated a high degree of accuracy in discriminating between murderers and non-murderers.
    • Statistically significant discriminant functions were identified.

    Conclusions:

    • The identified Rorschach variables and derived discriminant functions can reliably distinguish between murderers and non-murderers.
    • These findings suggest the Rorschach test can be a valuable adjunct in the clinical interpretation of criminal populations.

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