Are legal professionals more knowledgeable than laypersons concerning eyewitness testimony factors? A survey of trial judges, prosecutors and laypeople.

The goal of the study was to investigate and compare the knowledge of selected eyewitness testimony factors of legal professionals (represented by experienced trial judges and prosecutors from the public prosecutor’s offices; N = 313) and laypersons (N = 400). Authors used vignette methodology - a questionnaire with 23 items - real-life scenarios embedded in a case-specific context and gathered demographical information about both samples

本研究旨在调查并对比两类群体对指定目击者证词影响因素的认知水平：一类是以检察官办公室资深庭审法官及检察官为代表的法律从业者（样本量N=313），另一类为普通民众（样本量N=400）。研究者采用了情境 vignette 法（vignette methodology），即编制包含23个题项的问卷，将现实场景嵌入具体案件背景，并收集了两份样本的人口统计学信息。