Eyewitness Decision Processes: A Valid Reflector Variable

IF 2.1 3区 心理学 Q2 PSYCHOLOGY, EXPERIMENTAL
Jamal K. Mansour, Jennifer L. Beaudry, Mai-Tram Nguyen, Roy Groncki
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Abstract

Identification accuracy can be predicted from eyewitnesses' self-reported decision processes but the evidence of their ability to improve prediction when confidence and response time are included is mixed and minimal. Typically, decision processes are measured via one or five self-report questions; we explored whether a more nuanced questionnaire could improve prediction. Participants viewed a mock-crime video, made a target-present or -absent lineup decision, and completed 17 decision process items. An exploratory factor analysis on choosers' (n = 391) responses revealed three correlated factors, broadly reflecting automatic response, relative judgment, and absolute judgment. The three-factor solution had good internal reliability (McDonald's ωs = 0.93, 0.89, and 0.74, respectively). Scores produced from the questions loading on the automatic response and relative judgment factors improved predictions of accuracy compared to using confidence and response time alone. Self-reported decision processes may be an easy-to-administer and useful reflector of identification accuracy.

Abstract Image

目击者决策过程:一个有效的反射变量
识别准确性可以从目击者自我报告的决策过程中预测,但当包括信心和反应时间时,他们提高预测能力的证据是混合的和最小的。通常,决策过程是通过一个或五个自我报告问题来衡量的;我们探索了一个更细致的问卷是否可以提高预测。参与者观看了一段模拟犯罪视频,做出了目标在场或不在场的阵容决定,并完成了17个决策过程项目。对选择者(n = 391)的探索性因子分析揭示了三个相关因素,大致反映了自动反应、相对判断和绝对判断。三因子解具有良好的内部信度(麦当劳ωs分别为0.93、0.89和0.74)。与单独使用信心和反应时间相比,由自动反应和相对判断因素产生的问题产生的分数提高了预测的准确性。自我报告的决策过程可能是一种易于管理和有用的识别准确性反映。
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来源期刊
Applied Cognitive Psychology
Applied Cognitive Psychology PSYCHOLOGY, EXPERIMENTAL-
CiteScore
4.30
自引率
8.30%
发文量
111
期刊介绍: Applied Cognitive Psychology seeks to publish the best papers dealing with psychological analyses of memory, learning, thinking, problem solving, language, and consciousness as they occur in the real world. Applied Cognitive Psychology will publish papers on a wide variety of issues and from diverse theoretical perspectives. The journal focuses on studies of human performance and basic cognitive skills in everyday environments including, but not restricted to, studies of eyewitness memory, autobiographical memory, spatial cognition, skill training, expertise and skilled behaviour. Articles will normally combine realistic investigations of real world events with appropriate theoretical analyses and proper appraisal of practical implications.
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