MMPI-2 with Mexican psychiatric inpatients: basic and content scales

Area of Science:

• Psychology
• Psychometrics
• Clinical Assessment

Background:

• The Minnesota Multiphasic Personality Inventory-2 (MMPI-2) is a widely used psychological assessment tool.
• Validation of translated psychological instruments is crucial for diverse populations.
• Previous research has established the MMPI-2's utility in various cultural contexts.

Purpose of the Study:

• To evaluate the construct validity and diagnostic accuracy of the Mexican Spanish version of the MMPI-2.
• To assess the MMPI-2's ability to differentiate between clinical and non-clinical groups in Mexico.
• To establish normative data for the MMPI-2 in a Mexican clinical sample.

Main Methods:

• A clinical sample of 233 psychiatric patients diagnosed with psychological disturbances or personality disorders (DSM-III-R) was recruited from four Mexico City hospitals.
• Inpatient MMPI-2 scores were compared to a large Mexican normative sample (813 men, 1,137 women) of college students.
• Statistical analyses were employed to assess diagnostic accuracy and construct validity.

Main Results:

• The Mexican Spanish MMPI-2 demonstrated significant accuracy in differentiating between normal and non-normal groups within the Mexican population.
• The inventory maintained its established construct validity when applied to the clinical sample.
• Specific patterns of MMPI-2 scores were observed in the clinical group compared to the normative sample.

Conclusions:

• The Mexican Spanish version of the MMPI-2 is a valid and reliable instrument for assessing psychological disturbances in Mexican clinical populations.
• The findings support the use of the MMPI-2 for differential diagnosis and treatment planning in Mexican psychiatric settings.
• Further research could explore the MMPI-2's performance in other Spanish-speaking populations and with different diagnostic categories.