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Relationship between Tomm performance and PAI validity scales in a mixed clinical sample
Douglas M Whiteside1, Philip Dunbar-Mayer, Dana P Waters
1Argosy University-Seattle, American School of Professional Psychology, Seattle WA 98121, USA. dwhiteside@argosy.edu
The Clinical Neuropsychologist
|September 30, 2008
Summary
Personality assessment validity scales, specifically the Infrequency (INF) and Negative Impression Management (NIM) scales, correlate with reduced cognitive effort on memory tests. This suggests validity indicators can signal poor effort in assessments.
Area of Science:
- Psychological Assessment
- Neuropsychology
- Forensic Psychology
Background:
- Assessing cognitive effort is crucial in neuropsychological evaluations.
- Validity indicators on personality tests may reflect response biases affecting performance.
- The relationship between personality validity scales and objective measures of cognitive effort requires further investigation.
Purpose of the Study:
- To examine the correlation between Personality Assessment Inventory (PAI) validity indicators and cognitive effort measured by the Test of Memory Malingering (TOMM).
- To determine if specific PAI validity scales are associated with reduced performance on a cognitive effort task.
Main Methods:
- Correlational analyses were conducted between PAI validity scales and TOMM scores.
- Factor analysis was used to explore the structure of cognitive and personality measures.
- Hierarchical multiple regression and t-tests were employed to confirm relationships.
Main Results:
- Significant correlations were observed between several PAI validity scales and TOMM performance.
- The Negative Impression Management (NIM) scale showed loadings on both cognitive and personality factors.
- The Infrequency (INF) and NIM scales were significantly related to TOMM scores, indicating poorer cognitive effort.
Conclusions:
- Elevated scores on the PAI's INF and NIM scales are associated with decreased cognitive effort on the TOMM.
- Personality assessment validity indicators demonstrate a modest but significant relationship with poor cognitive effort.
- These findings support the utility of personality validity scales in identifying potential response bias in cognitive testing.
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