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Using Cholesky Decomposition to Explore Individual Differences in Longitudinal Relations between Reading Skills

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Exploring whether genetic differences between siblings explain sibling differences in criminal justice outcomes.

Joseph A Schwartz¹, Kevin M Beaver

¹College of Criminology and Criminal Justice, Florida State University, Tallahassee, FL 32306-1127, USA.

Comprehensive Psychiatry

|July 17, 2013

Summary

Genetic differences between siblings, specifically in dopaminergic polymorphisms, may influence distinct criminal justice system involvement. This study explores the link between genetic variations and behavioral differences in siblings.

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Area of Science:

Behavioral genetics
Criminology
Neuroscience

Background:

Siblings raised together show significant behavioral differences.
Environmental factors are traditionally cited for these differences.
The role of genetic variations between siblings is under-researched.

Purpose of the Study:

To investigate the association between genetic differences in dopaminergic polymorphisms and criminal justice system involvement among siblings.
To explore the influence of genetic variations on behavioral differences related to crime.

Main Methods:

Examined differences in three dopaminergic polymorphisms (DAT1, DRD2, DRD4) between siblings.
Utilized Ordinary Least Squares (OLS) regression models.
Analyzed criminal justice outcomes including arrest, incarceration, and multiple arrests.

Main Results:

Preliminary evidence suggests a link between between-sibling differences in dopaminergic polymorphisms and variations in criminal justice contact.
The association was explored in the full sample and separately for same-sex male and female subsamples.

Conclusions:

Genetic differences between siblings, particularly in dopaminergic genes, may play a role in differential involvement with the criminal justice system.
Further research is needed to elucidate these genetic influences on behavior and criminal justice outcomes.