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NCJ Number: 222048 Find in a Library
Title: Cyclical Changes of Homicide Rates: A Reanalysis of Brearley's 1932 Data
Journal: Journal of Interpersonal Violence  Volume:18  Issue:8  Dated:August 2003  Pages:942-955
Author(s): Danny Rock; David M. Greenberg; Joachim Hallmayer
Date Published: August 2003
Page Count: 14
Document: PDF (Purchase from Publisher)
Type: Report (Study/Research)
Format: Article
Language: English
Country: United States of America
Annotation: Using spectral analysis, this paper reexamined the original data from Brearley’s (1932) work analyzing temporal regularity in homicide rates across the United States.
Abstract: The reanalysis of the Brearley (1932) data using spectral analysis demonstrates that a significant seasonal dependency for homicide exists, peaks in August, and explains between 23 percent and 30 percent of the nonlinear variation in homicide deaths. The most important aspect of the results is the phase stability of the determined rhythm over time. Brearley analyzed FBI Uniform Crime Reports of 51,798 United States homicides between 1923 and 1928. Although he generally found a summer excess, the overall dispersion of the data led him to conclude that there was no consistent seasonal effect. The original data from Brearley’s analysis was reanalyzed using spectral analysis. Tables, figures, references
Main Term(s): Crime patterns; Data analysis; Homicide trends
Index Term(s): Behavior patterns; Homicide; Lunar influences on behavior; Seasonal influences on crime; Statistical analysis; Weather influences on crime
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