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Evaluative Research

Protecting Against Stress & Trauma: Research Lessons for Law Enforcement– Defining the Problem

October 2019
At this Research for the Real World seminar, NIJ brought together law enforcement practitioners and leading researchers in the field of stress to discuss the current research evidence and practical benefits of targeted stress-management interventions and how they can promote officer mental wellness. In addition, this gathering provided an exploration into what additional research is needed to best support officer health and wellness, potentially highlighting priority areas for future research.

Wrongful Convictions: The Latest Scientific Research & Implications for Law Enforcement

March 2013

What does science tell us about case factors that can lead to a wrongful conviction? Dr. Jon Gould of American University will discuss the findings of the first large-scale empirical study that has identified ten statistically significant factors that distinguish a wrongful conviction from a "near miss." (A "near miss" is a case in which an innocent defendant was acquitted or had charges dismissed before trial). Following Dr. Gould's presentation, Mr. John R.

Try Again, Fail Again, Fail Better: Lessons from Community Courts

April 2011

Change doesn't come easy, particularly within an institution as large and complex as the criminal justice system. Greg Berman, Director of the Center for Court Innovation, offered lessons from several efforts to make reform stick in criminal justice settings. In particular, he focused on the development of community courts — experimental court projects that are attempting to reduce both crime and incarceration in dozens of cities across the U.S. and around the world.

Evaluating Reentry Programs Using Data and Science

August 2019

How do you use data and science to measure program success?
John Wetzel, secretary of corrections, Pennsylvania Department of Corrections and Grant Duwe, Ph.D., director of research and evaluation, Minnesota Department of Corrections explain how their agencies evaluate programs using data and science. Duwe details how the most effective programs provided by the Minnesota DOC have been those that focus on known risk factors for recidivism. 

Going Home (or Not): How Residential Change Might Help the Formerly Incarcerated Stay Out of Prison

October 2011

Dr. Kirk discusses how Hurricane Katrina affected those formerly incarcerated persons originally from New Orleans and their likelihood of returning to prison. Kirk also discussed potential strategies for fostering residential change among those who were incarcerated, focusing specifically on parole residency policies and the provision of public housing vouchers.

Changing the Behavior of Drug-Involved Offenders: Supervision That Works

December 2012

A small number of those who commit crimes are heavily involved in drugs commit a large portion of the crime in this country. An evaluation of a "smart supervision" effort in Hawaii that uses swift and certain sanctioning showed that individuals committing crimes who are heavily involved in drug use can indeed change their behavior when the supervision is properly implemented.

Children Exposed to Violence

June 2010

Panelists will discuss the results of the recent Office of Juvenile Justice and ​Delinquency Prevention's National Survey on Children's Exposure to Violence and findings from a seven-year follow-up study, funded by NIJ, on home visitation in New York. The survey's findings included startling figures: More than 60 percent of the children interv​iewed were exposed to violence, crime and abuse within the past year, and more than 1 in 10 were injured in an assault.

The Evaluation of NIJ by the National Research Council of the National Academy of Sciences: NIJ's Response

June 2011

The National Academies conducted a comprehensive evaluation of the National Institute of Justice. This panel provides an overview of the evaluation and NIJ's response to it. NIJ has accepted many of the recommendations in the NRC report, and you will learn what the agency is doing to implement them. A few of the recommendations were challenging and created considerable debate within NIJ. Plans to address these thorny issues also are discussed.

Research on Returning Offender Programs and Promising Practices

It’s a rare event to have so many influential parts of the government convened in one room, and I’m honored to have the opportunity to address you today.

My name is David Muhlhausen and I am the director of the National Institute of Justice, which is the research, development, and evaluation arm of the Department of Justice.

I’ve also been recently appointed by the Attorney...

Domestic Violence Shelters: The Experience of the Survivor

June 2009

Panelists will present findings from a comprehensive study of domestic violence shelters in eight states. Data were collected from 3,410 residents in 215 domestic violence shelters — 81 percent of the shelters. The first of its kind, this descriptive study seeks to fill a gap in current knowledge about the needs and experiences of domestic violence survivors who turn to shelters for help and the type of help they receive. Implications for policy and programming will also be addressed.

Homicide in the United States

June 2009

The 2009 NIJ Conference kicked off with a blue-ribbon panel of leaders with expertise in urban issues as they relate to homicide. These experts will discuss promising approaches that have resulted in reduced violence and community empowerment.

Alternative Sentencing Policies for Drug Offenders

June 2009

The panel presentations from the 2009 NIJ Conference are based on an NIJ-sponsored evaluation of the effectiveness of Kansas Senate Bill 123, which mandates community-based drug abuse treatment for drug possession by nonviolent offenders in lieu of prison. 

Gang Membership Prevention

June 2010

The Centers for Disease Control and Prevention and NIJ collaborated on a book that focuses on promising principles for gang membership prevention. This NIJ Conference Panel discusses the risk and protective factors that influence gang membership as well as efforts to reduce such factors. Panelists also explored the direction of gang research for the future.