skip navigation


Register for Latest Research

Stay Informed
Register with NCJRS to receive NCJRS's biweekly e-newsletter JUSTINFO and additional periodic emails from NCJRS and the NCJRS federal sponsors that highlight the latest research published or sponsored by the Office of Justice Programs.

NCJRS Abstract

The document referenced below is part of the NCJRS Virtual Library collection. To conduct further searches of the collection, visit the Virtual Library. See the Obtain Documents page for direction on how to access resources online, via mail, through interlibrary loans, or in a local library.


NCJ Number: 98664 Find in a Library
Title: Descriptive Analysis of Crime in Quincy (IL)
Author(s): K Cooprider
Corporate Author: IllinoisCriminal Justice Information Authority
Statistical Analysis Ctr
United States of America
Date Published: 1984
Page Count: 48
Sponsoring Agency: IllinoisCriminal Justice Information Authority
Chicago, IL 60606
Type: Statistics
Format: Document
Language: English
Country: United States of America
Annotation: This report examines crime trends in Quincy, Ill., for 1972-81; compares Quincy's crime with that in five Illinois cities of similar size and with the State as a whole; and forecasts 1982 and 1983 Index crime in Quincy.
Abstract: Crime patterns over time were examined using two measures of criminal activity; the number of reported offenses (either aggregated by month or year) and crime rates per 100,000 population. For the most part, total Index crime in Quincy increased substantially between 1972 and 1981, with property crime increasing more than twice as much as violent crime. The comparison of Quincy's crime with the Illinois cities of Carbondale, Danville, DeKalb, Freeport, and Galesburg indicated that some cities experienced increases in the number of violent or property offenses while others encountered the opposite trend. Taken as a whole, however, the number of reported Index crimes in the cities increased between 1972 and 1981. While the violent crime rate increased in Quincy, it decreased in the State as a whole; and the increase in Quincy's property crime was almost twice that of the State. By forecasting the number of aggravated assaults, burglaries, larceny-thefts, and motor vehicle thefts in Quincy for 1982 and comparing the actual 1982 figures with the predicted values, the degree of forecast accuracy for each crime was determined. Overall, the time series model used to forecast larceny-thefts had the highest predictive accuracy. Appendixes contain the population tables, crime definitions, and crime forecasts. Tabular and graphic data are provided along with a nine-item bibliography.
Index Term(s): Comparative analysis; Crime analysis; Crime patterns; Crime prediction; Crime Statistics; Illinois; Offense statistics; Statistical Analysis Centers
To cite this abstract, use the following link:

*A link to the full-text document is provided whenever possible. For documents not available online, a link to the publisher's website is provided. Tell us how you use the NCJRS Library and Abstracts Database - send us your feedback.