Psychological needs associated with MMPI-2 scales in a nonclinical sample

Area of Science:

• Psychology
• Personality Assessment
• Clinical Psychology

Background:

• Understanding the relationship between psychological needs and personality traits is crucial for accurate assessment.
• The Adjective Check List (ACL) and the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) are widely used tools in psychological research.
• Previous research has explored the construct validity of various psychological measures.

Purpose of the Study:

• To investigate the associations between psychological needs assessed by the ACL and scales of the MMPI-2.
• To evaluate the construct and concurrent validity of specific MMPI-2 scales based on their correlation with ACL-derived needs.
• To identify patterns of psychological needs associated with key MMPI-2 scales in a nonclinical sample.

Main Methods:

• A sample of 198 nonclinical participants completed both the Adjective Check List (ACL) and the Minnesota Multiphasic Personality Inventory-2 (MMPI-2).
• Correlational analyses were performed to examine the relationships between ACL-derived psychological needs and MMPI-2 scale scores.
• Specific MMPI-2 scales analyzed included Depression (D), Psychasthenia (Pt), Schizophrenia (Sc), Social Introversion (Si), and Masculinity-Femininity (Mf).

Main Results:

• MMPI-2 Depression (D) and Psychasthenia (Pt) scales showed negative correlations with needs for achievement and dominance, and positive correlations with needs for abasement and succorance.
• The Schizophrenia (Sc) scale was negatively associated with the need for affiliation and positively associated with the need for abasement.
• The Social Introversion (Si) scale demonstrated strong construct validity, correlating negatively with needs for achievement, dominance, affiliation, heterosexuality, exhibition, and autonomy, and positively with needs for succorance, abasement, and deference. The MMPI-2 Masculinity-Femininity (Mf) scale showed poor concurrent validity, lacking correlation with ACL Masculinity and Femininity scales.

Conclusions:

• The findings support the construct validity of the MMPI-2 Social Introversion (Si) scale by demonstrating expected associations with various psychological needs.
• The lack of correlation between MMPI-2 Masculinity-Femininity (Mf) and ACL Masculinity/Femininity scales suggests limitations in the concurrent validity of the Mf scale.
• Specific MMPI-2 scales are differentially associated with fundamental psychological needs, offering insights into personality structure and assessment.