Comparing and Contrasting Rates of Firearm Homicides and Suicides
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Final Accepted Manuscript
Affiliation
Department of Psychology, School of Mind, Brain, and Behavior, College of Science, University of ArizonaIssue Date
2022-03-03Keywords
Firearm homicideFirearm suicide
Firearm violence
Life history strategy
Parasite burden
Social biogeography
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Springer Science and Business Media LLCCitation
Zambrano, R. C., Peñaherrera-Aguirre, M., Figueredo, A. J., & Jacobs, W. J. (2022). Comparing and Contrasting Rates of Firearm Homicides and Suicides. Evolutionary Psychological Science.Rights
© The Author(s), under exclusive licence to Springer Nature Switzerland AG 2022.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
The present research investigates relations among social-biogeographic factors (i.e., temperature, parasite burden, poverty rate, firearm possession rate, psychopathology rate, and estimated IQ), firearm homicide rate, and firearm suicide rate in each of the 50 states of the United States of America. Analysis of archival state-level data showed that local parasite burden strongly and positively predicted firearm homicide rate (sR =.58, p = <.0001). In contrast, both firearms possession rate (sR = −.18, p =.008) and State psychopathology rate (sR = −.34, p = <.0001) negatively predicted firearm homicide rate. In contrast, State psychopathology rate alone positively predicted suicide rate (sR =.42, p = <.0001). These results, which we discuss in terms of Thornhill’s and Fincher’s Parasite-Stress Model (2011), can be used to provide behavior-driven alternative models of behavior to guide political policy making and therapeutic interventions.Note
12 month embargo; published: 03 March 2022EISSN
2198-9885Version
Final accepted manuscriptae974a485f413a2113503eed53cd6c53
10.1007/s40806-021-00311-y