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MMPI Scales for measuring Eysenck's personality factors
T A Gentry1, J A Wakefield, A F Friedman
1California State College, Stanislaus, USA.
Journal of Personality Assessment
|April 1, 1985
Summary
Four new Minnesota Multiphasic Personality Inventory (MMPI) scales were developed to measure Eysenck
Area of Science:
- Psychological assessment
- Personality psychology
- Psychometrics
Background:
- The Minnesota Multiphasic Personality Inventory (MMPI) is a widely used personality test.
- Eysenck's personality factors (psychoticism, extraversion, neuroticism) are key constructs in personality research.
- Existing MMPI scales may not fully capture these Eysenckian dimensions.
Purpose of the Study:
- To develop and validate new Minnesota Multiphasic Personality Inventory (MMPI) scales.
- To specifically measure Eysenck's personality factors: psychoticism, extraversion, and neuroticism.
- To assess a lie score using MMPI items.
Main Methods:
- Construction of four new scales based on MMPI items.
- Validation of the new scales against the Eysenck Personality Questionnaire (EPQ).
- Validation against the Friedman Overlap Scales, also derived from MMPI items.
Main Results:
- The newly developed MMPI scales demonstrated good construct validity.
- Strong correlations were found between the new MMPI scales and the Eysenck Personality Questionnaire.
- The construct validity of the Friedman Overlap Scales was also supported by the study.
Conclusions:
- The new MMPI scales effectively measure Eysenck's personality factors.
- These scales offer a valuable tool for assessing psychoticism, extraversion, and neuroticism within the MMPI framework.
- The findings enhance the utility of the MMPI in personality research.
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