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Statistical methodologies

Booker and Beyond Analyzing Sentencing Reform and Exploring New Research Directions

January 2022

This webinar features a discussion of previously published research on the U.S. Supreme Court’s 2005 Booker decision - which effectively transformed the United States Sentencing Guidelines from a mandatory, to an advisory, system. The presentation will address selected research findings from the last 15 years. Individual participants will briefly review their previous research findings with particular attention paid to the analytic methods used.

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What Is Research and Evaluation Evidence and How Can We Use It?

June 2010

This NIJ Conference Panel will explore the development and use of evidence-based policies, programs and technologies to improve effectiveness and efficiencies related to government. Through casual observation, practices and programs may appear to be effective, but under closer scrutiny the results may look much different.

What Works in Offender Supervision

June 2009

This NIJ Conference Panel highlights findings from NIJ projects that evaluated strategies to enhance the supervision of offenders in the community. Researchers discuss the effectiveness of fair, swift and certain sanctions for high-risk probationers in the Hawaii HOPE program. Panelists also provide empirical evidence on the effectiveness of electronic monitoring — including the use of GPS tracking — for medium- and high-risk offenders on supervision and upon completion of their supervision sentence.