Further exploration of the Rorschach Aggressive Content (AgC) variable

Area of Science:

• Psychological Assessment
• Personality Psychology
• Forensic Psychology

Background:

• The Rorschach Aggressive Content (AgC) variable was developed by Gacono and Meloy (1994).
• Previous recommendations by Baity and Hilsenroth (1999) suggested further investigation into its reliability and validity.
• The Comprehensive System by Exner (1993) is a widely used Rorschach scoring method.

Purpose of the Study:

• To investigate the reliability and validity of the Rorschach Aggressive Content (AgC) variable.
• To determine if the AgC list is replicable and if aggressive objects can be reliably classified.
• To provide recommendations for incorporating the AgC variable into Exner's Comprehensive System.

Main Methods:

• Eighty-five aggressive, 19 potentially aggressive, and 22 neutral objects were rated for aggressiveness using the AgC definition on a 0-6 scale.
• Objects rated 4 or higher were classified into five qualitative categories: weapons, animal/part of animal, environmental danger, fictional creature, and other.
• One-month test-retest reliability was assessed.

Main Results:

• The AgC list demonstrated replicability.
• Objects rated as moderately aggressive (4) or higher were reliably classified into distinct categories.
• One-month test-retest reliability was found to be very high (r = .99), indicating consistent scoring.

Conclusions:

• The Rorschach Aggressive Content (AgC) variable is reliable and valid.
• The AgC variable can be consistently scored and reliably classified.
• Recommendations are made for the addition of the AgC variable to Exner's Comprehensive System for enhanced psychological assessment.