A multinomial model for lineups – request for extension

阵容的多项模型 – 延期请求

• 批准号: 456214986
• 负责人: Professor Dr. Axel Buchner
• 金额: --
• 依托单位: Arbeitsgruppe Allgemeine Psychologie und Arbeitspsychologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/456214986?language=en
• 关键词: multinomial; model; lineups; request; extension

The aim of the first project phase was to validate the newly developed multinomial model for lineups (from now on: 2HT-EIM for two-high threshold eyewitness identification model). The 2HT-EIM contains four parameters that are estimated on the basis of judgments in lineups: one parameter for the detection of the presence of the perpetrator (dP) in the lineup and one for the detection of the absence of the perpetrator (dA), one parameter for the selection of ‘conspicuous’ perpetrators or wrongly suspected persons in unfair lineups (b for biased selection) and one parameter for choices based on guessing processes (g for guessing-based selection). To date, four online validation experiments from the project proposal have been conducted and published (Winter, Menne, Bell & Buchner, 2022). Also, eight published datasets have been reanalyzed for validation purposes and the analyses have been published (Menne, Winter, Bell & Buchner, 2022b). In addition, four more online experiments have been conducted using the morphing manipulation suggested in the project proposal to generate unfair lineups. The manuscript documenting these four experiments has been submitted for publication (Menne, Winter, Bell & Buchner, 2022a).Following the successful validation of the 2HT-EIM in the first phase of the project (Menne et al., 2022b; Winter et al., 2022), the model shall now be used to answer new scientific questions for which it is so far unclear what processes underlie the effects on observable behavior. Specifically, there are four goals for this endeavor. The first goal is to answer the question of how context reinstatement with multiple suspects in lineups affects the detection and guessing processes underlying observable judgments. The second goal is to answer the question of how practice lineups affect the detection and guessing processes. The third goal is to answer the question of how stimulating memory-related metacognitions affects detection and guessing processes. Finally, the fourth goal is to answer the question of what effects the position of a suspect in a lineup has on detection and guessing processes. Two experiments are planned for each of these four goals.

第一个项目阶段的目的是验证新开发的多项阵容模型（从现在开始：2HT-EIM为双高阈值目击者识别模型）。2HT-EIM包含四个参数，这些参数是根据对队列的判断来估计的：一个参数用于检测队列中行为人的存在（dP），一个参数用于检测行为人的缺席（dA），一个参数用于选择“明显”行为人或在不公平队列中被错误怀疑的人（b表示有偏见的选择），一个参数用于基于猜测过程的选择（g表示基于猜测的选择）。迄今为止，已经进行了四次项目提案的在线验证实验并发表了（Winter, Menne, Bell & Buchner, 2022）。此外，为了验证目的，对8个已发表的数据集进行了重新分析，并发表了分析结果（Menne, Winter, Bell & Buchner, 2022b）。此外，使用项目提案中建议的变形操作进行了另外四个在线实验，以产生不公平的阵容。记录这四个实验的手稿已经提交出版（Menne, Winter, Bell & Buchner, 2022a）。在项目第一阶段成功验证2HT-EIM之后（Menne et al., 2022b; Winter et al., 2022），该模型现在将用于回答新的科学问题，目前尚不清楚是什么过程导致了对可观察行为的影响。具体来说，这一努力有四个目标。第一个目标是回答多个嫌疑人在队列中的情境恢复如何影响可观察判断的检测和猜测过程的问题。第二个目标是回答练习阵容如何影响检测和猜测过程的问题。第三个目标是回答刺激与记忆相关的元认知如何影响检测和猜测过程的问题。最后，第四个目标是回答嫌疑犯在队列中的位置对侦查和猜测过程的影响。针对这四个目标，计划分别进行两个实验。