签名复杂性如何影响专家和普通人区分真实,伪装和模拟签名的能力
Nicholas Scurich1, Miriam Angel2, Hal Stern3
1Department of Psychological Science and Criminology, Law & Society, University of California-Irvine, Irvine, California, USA.
Journal of forensic sciences
|August 26, 2024
概括
签名的复杂性影响了法医文档审查员 (FDE) 检测伪造的能力. 中等复杂度的签名产生了最高的准确性,而所有检查员都在与伪装的签名作斗争.
科学领域:
- 法医科学 法医科学 法医科学
- 认知心理学 认知心理学
- 文件审查 文件审查
背景情况:
- 法医文档审查员 (FDE) 分析签名以确定真实性.
- 签名的复杂性可能会影响专家和普通人的评价的准确性.
- 了解影响签名验证的因素对于法律程序至关重要.
研究的目的:
- 调查签名复杂度对法医文档检查人员 (FDE) 和非专业人员准确性的影响.
- 评估在区分真实与模拟 (伪造) 和伪造签名方面的性能.
- 为了比较专家与新手在签名验证任务中的能力.
主要方法:
- 这是一项在线研究,涉及来自9个国家的45个FDE和101个新手.
- 参与者评估了9个不同的签名比较任务,复杂度不同 (低,中,高).
- 使用接收器操作特征 (ROC) 分析来评估性能指标,如灵敏度和特异性.
主要成果:
- 飞行测试超出了机会,其准确性因签名复杂性而有所不同.
- 具体性 (真负率) 在中等复杂性的签名中最高 (95%),在低复杂性的签名中最低 (73%).
- 在中等和高复杂度的签名上,FDE的表现优于新手,但低复杂度的签名没有. 对于伪造的签名的敏感性是低的 (11%) 对于两个组.
结论:
- 签名复杂性显著影响专家和普通人的签名评估的准确性.
- 中等复杂度的签名似乎是最可靠的识别.
- FDE和新手都在检测伪装的签名方面表现出局限性,突出了在培训和方法方面需要改进的潜在领域.
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