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271.
Eyewitness Accuracy Rates in Sequential and Simultaneous Lineup Presentations: A Meta-Analytic Comparison 总被引:2,自引:0,他引:2
Steblay Nancy Dysart Jennifer Fulero Solomon Lindsay R. C. L. 《Law and human behavior》2001,25(5):459-473
Most police lineups use a simultaneous presentation technique in which eyewitnesses view all lineup members at the same time. Lindsay and Wells (R. C. L. Lindsay & G. L. Wells, 1985) devised an alternative procedure, the sequential lineup, in which witnesses view one lineup member at a time and decide whether or not that person is the perpetrator prior to viewing the next lineup member. The present work uses the technique of meta-analysis to compare the accuracy rates of these presentation styles. Twenty-three papers were located (9 published and 14 unpublished), providing 30 tests of the hypothesis and including 4,145 participants. Results showed that identification of perpetrators from target-present lineups occurs at a higher rate from simultaneous than from sequential lineups. However, this difference largely disappears when moderator variables approximating real world conditions are considered. Also, correct rejection rates were significantly higher for sequential than simultaneous lineups and this difference is maintained or increased by greater approximation to real world conditions. Implications of these findings are discussed. 相似文献
272.
A study designed to test the effects of delay between crime and lineup on identification accuracy produced an unusually high rate of correct rejection from target-absent, simultaneous lineups (J. E. Dysart, 1999). Examining the procedures indicated that one question included in a preidentification questionnaire differed from those used previously. The question asked witnesses if they believed they would be able to correctly reject a target-absent lineup. An experiment (N = 138) was conducted to explore the impact of preidentification questions, including this new question, on witness accuracy. Results revealed that asking witnesses these questions, prior to viewing the lineup, significantly increased correct rejections of target-absent simultaneous lineups. 相似文献
273.
Attrition in male battering treatment programs is a serious problem. To keep clients in treatment, it is crucial to understand why they drop out. The current study examined the contribution of both client and program characteristics in predicting dropout from treatment programs for abusive men. Data were collected at intake from 306 abusive men who sought treatment at four different sites. The rate of preprogram attrition (from intake to the first treatment session) was higher in the program that had a lengthy waiting list (46%) than in the other programs amp lpar3%-13%). In-program attrition was more highly related to client characteristics than program characteristics (all programs had rates between 36% and 42%). Those men who dropped out after starting treatment tended to have unstable lifestyles (e.g., substance abuse problems, criminal history, unemployment) and to have inflicted more severe abuse than those who completed treatment. Results also supported a significant interaction between verbal aptitude and structure of program; men with low verbal aptitude were the most likely to drop out of an unstructured program. Possible strategies for preventing attrition are discussed. 相似文献
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