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Related Experiment Video

Updated: May 20, 2026

The Resident-intruder Paradigm: A Standardized Test for Aggression, Violence and Social Stress

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Published on: July 4, 2013

Endogeneity in prison risk classification.

Lauren O'Neill Shermer¹, David M Bierie, Amber Stock

¹Widener University, Chester, PA, USA.

International Journal of Offender Therapy and Comparative Criminology

|July 24, 2012

Summary

This summary is machine-generated.

Prison security designation tools may overestimate inmate risk due to facility-level contamination. This study reveals that prison environments, not just inmate characteristics, influence misconduct rates, impacting risk assessment accuracy.

Keywords:

fixed effects inmate misconduct prison risk classification

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Last Updated: May 20, 2026

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Published on: October 23, 2020

Area of Science:

Criminology
Penal System Analysis
Correctional Policy Research

Background:

Security designation tools are standard in US prisons to objectively assess inmate risk and assign them to appropriate security levels.
Current validation methods rely on correlating inmate characteristics with subsequent misconduct, potentially overlooking environmental influences.

Purpose of the Study:

To investigate potential endogeneity bias in prison security designation tools.
To determine if prison environments themselves contribute to inmate misconduct, thereby affecting the perceived accuracy of risk assessment tools.

Main Methods:

Analysis of an entry cohort across over 100 Federal Bureau of Prisons (BOP) facilities.
Exploitation of variations in classification scores within prisons due to non-risk-related overrides.
Estimation using pooled models of misconduct and prison-fixed effects specifications.

Main Results:

A significant portion of the predictive accuracy attributed to the BOP's risk designation tool was found to be a result of facility-level contamination.
The study identified endogeneity, where prison environments influenced misconduct rates independently of initial risk assessments.

Conclusions:

The accuracy of current prison security designation tools may be overestimated due to unaddressed endogeneity.
Correctional policies should account for facility-level influences on inmate behavior to improve risk assessment and management.