PSYC1001 Lecture Notes - Lecture 3: Eyewitness Identification, Meta-Analysis, Penrod
9 Aug 2018
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Factors affecting the accuracy of ids: id procedures, composition of line-up, format of id procedure, instructions given to the witnesses, line-up presentation. Witnesses are frequently asked to identify a culprit from a line-up. Line-ups contain the suspect who is placed among a set of individuals who are known to be innocent for the crime in question, called foils or distractors. To accurately assess the rate at which real witnesses will correctly identify culprits two types of line-ups are needed in research: target-present line-ups: Line-up contains the culprit (suspect is the perpetrator): target-absent line-ups: Line-up contains an innocent suspect (suspect is not the perpetrator). Id evidence can be dangerous: it is very convincing. Psyc1001 lecture 3 forensic psychology: research shows us that identification evidence is often inaccurate, false ids have 2 negative consequences: Innocent people can be convicted: thus, eyewitnesses can be sincere, confident, convincing, evidence of inaccurate ids.
