In cold blood: Characteristics of criminal homicides as a function of psychopathy.

Michael Woodworth, Stephen Porter·2002·Journal of Abnormal Psychology

Abstract

This study investigated the relationship between psychopathy and the characteristics of criminal homicides committed by a sample of 125 Canadian offenders. It was hypothesized that the homicides committed by psychopathic offenders would be more likely to be primarily instrumental (i.e., associated with premeditation, motivated by an external goal, and not preceded by a potent affective reaction) or "cold-blooded" in nature, whereas homicides committed by nonpsychopaths often would be "crimes of passion" associated with a high level of impulsivity/reactivity and emotionality. The results confirmed these predictions; homicides committed by psychopathic offenders were significantly more instrumental than homicides by nonpsychopaths. Nearly all (93.3%) of the homicides by psychopaths were primarily instrumental in nature compared with 48.4% of the homicides by nonpsychopaths.

Cites (1)

  1. Statistical Methods for Rates and Proportions
    Fleiss, Joseph L., Levin, Bruce, Paik, Myunghee Cho · 2003 · Wiley Series in Probability and Statistics

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How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: In cold blood: Characteristics of criminal homicides as a function of psychopathy. https://app.cochat.ai/papers/10.1037//0021-843x.111.3.436
The paper
Woodworth, M., & Porter, S. (2002). In cold blood: Characteristics of criminal homicides as a function of psychopathy. Journal of Abnormal Psychology. https://doi.org/10.1037//0021-843x.111.3.436

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.