填充剂相似性和阵容大小对目击者识别的影响
Kyros J Shen1, Jiaqi Huang1, Allan L Lam1
1Department of Psychology, University of California, San Diego.
概括
照片排列的有效性取决于填充剂的相似性和大小. 增加阵容大小可以提高不同填充器的精度,但可以减少类似填充器的精度,这表明降低噪音是关键.
科学领域:
- 认知心理学 认知心理学
- 目击者鉴定 调查研究
背景情况:
- 照片排队结合了旧/新和强制选择识别测试.
- 信号检测模型根据阵列变量预测目击者的表现.
研究的目的:
- 调查填充剂相似性和阵容大小对目击者识别准确性的综合影响.
- 测试竞争信号检测模型的预测.
主要方法:
- 同时操纵填充物相似性和阵容大小在照片阵容中.
- 评估证人区分有罪嫌疑人和无辜嫌疑人的能力.
主要成果:
- 填充剂的相似性和阵容大小相互作用,影响可歧视性.
- 随着阵容大小的增加,高填充物相似性降低了准确性.
- 较低的填充物相似性会随着阵容大小的增加而提高准确性.
结论:
- 现有的模型不能完全解释观察到的结果.
- 填充物不相似性将照片排队中的决策噪音降到最低.
- 优化阵列构造需要考虑填充剂的相似性和尺寸.
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