Extraversion, neuroticism, immoral judgment and criminal behaviour

Area of Science:

• Psychology
• Criminology
• Developmental Psychology

Background:

• Delinquent behavior is often studied through personality traits (Eysnck's theory) and moral development (Kohlberg's theory) separately.
• Understanding the interplay between personality and moral judgment is crucial for explaining anti-social behavior.

Purpose of the Study:

• To investigate the relationship between Eysnck's personality dimensions (extraversion, neuroticism) and Kohlberg's moral development in relation to delinquent behavior.
• To examine the independent and interactive effects of personality traits and moral judgment on anti-social behavior.

Main Methods:

• Retrospective measurements of personality traits and moral judgment were conducted.
• Three groups were analyzed: a delinquency group (N=203), a control group (N=82), and a comparative group (N=407).

Main Results:

• Individuals in the delinquency group scored higher in neuroticism and immoral judgment compared to the control group.
• Extraversion was not significantly different between criminals and controls, but positively related to delinquency in the comparative group, especially when interacting with neuroticism.

Conclusions:

• Neuroticism and immoral judgment are associated with criminal behavior.
• The role of extraversion in delinquency may depend on the comparison group and interact with neuroticism, suggesting complex developmental pathways for anti-social behavior.