PSYCH 3CC3 Lecture Notes - Lecture 22: Response Bias, Receiver Operating Characteristic
4 Nov 2020
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Document Summary
The roc curve single detection theory eyewitness testimony. Offender-present lineup: where police believe offender is in lineup. Problem: most witnesses assume that the offender is present in the lineup, so they"re likely to make a choice regardless, lineup instructions. Biased: see if you recognize the offender in the lineup. Unbiased: see if you recognize the offender, who may not be in the lineup. : 90% still assume presence of offender in lineup (memon, gabbert & hope, 2004, lineup composition. How many foils: people who are innocent and placed in the lineup (distractors, 3 plausible foils the minimum; accuracy no better beyond that. Match to description: foils chosen to match description given by witness. Match to offender: foils chosen to match the actual appearance of the suspect/offender: lineup presentation mode. Aka how a lineup can be formulated. The most typical way; ask peple to lineup and for person to pick out offender. Can also do with a bunch of pitcutres.
