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NCJRS Abstract

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NCJ Number: 92733 Find in a Library
Title: Criminal Justice Simulation - Trade-Offs Between Performance Measurement and Other Model Design Criteria
Author(s): S J Deutsch; J E Richards
Corporate Author: Georgia Institute of Technology
School of Industrial and Systems Engineering
United States of America
Date Published: Unknown
Page Count: 41
Sponsoring Agency: Georgia Institute of Technology
Atlanta, GA 30332
National Institute of Justice/
Rockville, MD 20849
NCJRS Photocopy Services
Rockville, MD 20849-6000
US Dept of Justice

US Dept of Justice NIJ Pub
Washington, DC 20531
Grant Number: 78-NI-AX-0003
Sale Source: National Institute of Justice/
NCJRS paper reproduction
Box 6000, Dept F
Rockville, MD 20849
United States of America

NCJRS Photocopy Services
Box 6000
Rockville, MD 20849-6000
United States of America
Document: PDF
Type: Report (Study/Research)
Language: English
Country: United States of America
Annotation: Users of models of the criminal justice system should carefully analyze the potential performance measures when they choose a model, in order to ensure that the measurement process contained in the model and its accompanying methodology approaches the goal reflected in the measurement strategy.
Abstract: A model's performance measure, as well as the measurement strategy and process used, define the accuracy, reliability, and even the appropriateness of any estimate of behavior. Criminal justice researchers have used probabilistic models, nonlinear programing models, simulation models, and other models. In every case, the model's form and its accompanying methodology prescribe and restrict the measurement strategy or process and sometimes the type of performance measure that is appropriate. As a result, numerous assumptions and compromises are usually needed to make a model work. Since the choice of a performance measure for a model often imposes restrictions on the form of the model, model builders should consider the tradeoffs between performance measures and model forms. If they do this, they will be able to choose the approaches which best suit their needs. In simulations concerning career criminals and their effects on the criminal justice system, offenders may be portrayed either as individual entities or as aggregate flows. These two model forms can generate many measures of system performance. The individual offender simulation requires fewer assumptions for a greater number of these measures than does the flow model. A figure, data tables, and 23 references are provided.
Index Term(s): Criminal justice research; Modeling techniques; Models; Testing and measurement
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