ROC Analysis of the Verbal Overshadowing Effect: Testing the Effect of Verbalisation on Memory Sensitivity
ROC Analysis of the Verbal Overshadowing Effect: Testing the Effect of Verbalisation on Memory Sensitivity
复制标题
语言遮蔽效应的 ROC 分析:测试语言化对记忆敏感性的影响
DOI:
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发表时间:
2015
期刊:
影响因子:
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通讯作者:
H. Flowe
中科院分区:
文献类型:
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作者:
H. Smith;H. Flowe
Summary: This study investigated the role of memory sensitivity versus recognition criterion in the verbal overshadowing effect (VOE). Lineup recognition data were analysed using receiver operating characteristic analysis to separate the effects of verbalisation on memory sensitivity from criterion placement. Participants watched a short crime video, described the perpetrator’s facial features and then attempted a lineup identification. Description instructions were varied between participants. There was a standard (free report), forced (report everything) and warning (report accurate information) condition. Control participants did not describe the perpetrator. Memory sensitivity was greater in the control compared with the standard condition. Memory sensitivity was also greater in the warning condition than in the forced and standard conditions. Memory sensitivity did not differ across the forced and standard-description conditions, although a more conservative lineup decision standard was employed in the forced condition. These results, along with qualitative analyses of descriptions, support both retrieval-based and criterionbased explanations of the VOE. Copyright © 2014 John Wiley & Sons, Ltd. Following a crime, witnesses are likely to be asked questions about the appearance of the perpetrator (TWGEE, 1999). These descriptions may allow law enforcement officers to apprehend suspects fitting witnesses’ descriptions, rule out other suspects and construct fair lineups. Obtaining a detailed and accurate verbal description of the perpetrator can be vital in securing a conviction. Some psychological research suggests that in prompting witnesses to describe a perpetrator, the police may be undermining the diagnostic value of lineup identification evidence (e.g. Schooler & Engstler-Schooler, 1990). The act of describing the perpetrator could subsequently make witnesses less likely to identify the guilty suspect from a lineup. The verbal overshadowing effect (VOE) refers to the tendency for verbal descriptions to impair subsequent recognition performance. In Schooler and Engstler-Schooler’s (1990) seminal study, participants watched a 30-second video of a robbery and then attempted to identify the perpetrator on an eight-person target-present lineup. Participants who verbally described the perpetrator’s face prior to the lineup were significantly less accurate than those who did not. The effect has been replicated (e.g. Brown & LloydJones, 2003; Dodson, Johnson & Schooler, 1997; Fallshore & Schooler, 1995; Westerman & Larsen, 1997). Meissner and Brigham’s (2001) meta-analysis indicated that verbalisation had a small but significant negative effect on face identification accuracy. Participants were 1.27 times more likely to be inaccurate on target-present lineups. However, the magnitude and direction of the effect vary across studies. Early studies uncovered lineup performance disruptions of around 50% following verbal descriptions (Schooler & Engstler-Schooler, 1990). However, the first replication attempt detected an effect size that was 30% lower (Fallshore & Schooler, 1995). There have also been numerous failures to replicate the VOE (e.g. Clifford, 2003; Memon & Bartlett,
DOI:
10.1037//0278-7393.21.6.1608
发表时间:
1995
期刊:
Journal of experimental psychology. Learning, memory, and cognition
影响因子:
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作者:
Fallshore,M;Schooler,JW
通讯作者:
Schooler,JW
DOI:
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发表时间:
1997
期刊:
The American journal of psychology.
影响因子:
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作者:
Westerman,DL;Larsen,JD
通讯作者:
Larsen,JD