The factor structure of the MacAndrew alcoholism scale

Area of Science:

• Psychology
• Clinical Psychology
• Addiction Research

Background:

• The MacAndrew alcoholism scale is a widely used tool for assessing personality characteristics associated with alcoholism.
• Previous research has explored its factor structure, but replication with methodological variations is needed.

Purpose of the Study:

• To replicate the factor structure of the MacAndrew alcoholism scale.
• To investigate the scale's utility with a large, diverse sample and modified methodologies.
• To assess the clinical applicability of the scale's derived factors.

Main Methods:

• Utilized a large sample of male (n=1563) and female (n=293) individuals diagnosed with alcoholism.
• Employed several methodological modifications compared to previous studies.
• Conducted factor analysis on the MacAndrew scale data.

Main Results:

• Male and female factor solutions demonstrated high similarity.
• Six factors were identified, consistent with prior research after adjusting for item mean differences.
• These factors explained minimal variance and exhibited modest internal consistency, suggesting limited clinical utility.

Conclusions:

• The MacAndrew alcoholism scale's factor structure is replicable but explains limited variance.
• The scale's item pool may be insufficient for capturing diverse personality dimensions in alcoholics.
• The derived scales possess limited clinical usefulness for assessing alcoholic populations.