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Related Experiment Videos

Detecting faking on the Rorschach: computer versus expert clinical judgment.

M W Kahn1, H Fox, R Rhode

  • 1Department of Psychology, University of Arizona, Tucson 85721.

Journal of Personality Assessment
|January 1, 1988
PubMed
Summary

Detecting faking on Rorschach tests is difficult. A computer analysis using the Exner system showed similar susceptibility to faking as human experts, misidentifying normal protocols.

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Area of Science:

  • Psychology
  • Forensic Psychology
  • Psychological Assessment

Background:

  • Previous research indicated expert Rorschach interpreters perform poorly in detecting faking.
  • Malingering detection is crucial in forensic and clinical settings.

Purpose of the Study:

  • To evaluate the effectiveness of the Exner system and its Semantic Computer Interpretation program in detecting faking in Rorschach protocols.
  • To compare the computer's performance with human expert judgment in identifying malingered protocols.

Main Methods:

  • Utilized a dataset of true and malingered Rorschach protocols from a prior study.
  • Scored 50% of these protocols using the Exner system.
  • Analyzed the scored protocols with Exner's Semantic Computer Interpretation program.

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Main Results:

  • The computer program identified protocol invalidity based solely on low response count (R).
  • Malingered protocols were incorrectly flagged with high psychotic descriptors.
  • True schizophrenic protocols received minimal psychosis indicators.
  • Unlike human judges, the computer did not mislabel normal protocols as psychotic.

Conclusions:

  • The Exner scoring and computer analysis method demonstrated similar susceptibility to faking as clinical judgments.
  • Rorschach interpretation, whether by experts or computer, faces challenges in accurately detecting malingering.
  • Further research is needed to improve the detection of deceptive responses in psychological assessments.