Subtypes of substance abusers: personality differences associated with MacAndrew scores

Area of Science:

• Psychology
• Psychiatry
• Substance Abuse Research

Background:

• Previous research identified personality correlates of high versus low MacAndrew Scale (Mac) scores on the MMPI.
• These studies often overlooked adjustments for age, nature of abuse, and sex differences in personality correlates.
• This study addresses these limitations to provide a more nuanced understanding of Mac scale associations.

Purpose of the Study:

• To investigate personality correlates of high vs. low MacAndrew Scale (Mac) scores on the MMPI.
• To account for age and diagnosis in the analysis of Mac scale personality differences.
• To examine potential sex-specific variations in these personality correlates.

Main Methods:

• Utilized the MacAndrew Scale (Mac) of the MMPI.
• Controlled for patient age and diagnosis in statistical analyses.
• Compared personality profiles of high vs. low Mac scorers, analyzing differences between male and female patient groups.

Main Results:

• Significant differences in major MMPI scales were observed between high and low Mac scorers, even after controlling for age and diagnosis.
• The pattern of these personality differences varied considerably between male and female patients.
• These findings highlight sex-specific personality correlates associated with Mac scale scores.

Conclusions:

• Personality correlates of the MacAndrew Scale (Mac) are influenced by age and diagnosis.
• Significant sex differences exist in the personality profiles associated with high vs. low Mac scores.
• These findings have important implications for tailoring substance abuse treatment strategies to individual patient characteristics and sex.