Carmel David, Dayan Eran, Naveh Ayelet, Raveh Ori, Ben-Shakhar Gershon
Department of Psychology, Hebrew University of Jerusalem, Jerusalem, Israel.
J Exp Psychol Appl. 2003 Dec;9(4):261-9. doi: 10.1037/1076-898X.9.4.261.
This experiment was designed to examine the external validity of the standard mock-crime procedure used extensively to evaluate the validity of polygraph tests. The authors manipulated the type of mock-crime procedure (standard vs. a more realistic version) and the time of test (immediate vs. delayed) and examined their effects on the validity of the Guilty Knowledge Test (GKT) and the recall rate of the relevant items. The results indicated that only the type of mock-crime affected the 2 outcome variables. The realistic procedure was associated with a lower recall rate and weaker detection efficiency than the standard procedure. However, these effects were mediated by the type of GKT questions used. Practical implications of these results are discussed.
本实验旨在检验广泛用于评估测谎仪测试有效性的标准模拟犯罪程序的外部效度。作者操纵了模拟犯罪程序的类型（标准型与更逼真型）和测试时间（即时与延迟），并考察了它们对有罪知识测试（GKT）效度及相关项目回忆率的影响。结果表明，只有模拟犯罪程序的类型影响这两个结果变量。与标准程序相比，逼真的程序与较低的回忆率及较弱的检测效率相关。然而，这些影响是由所使用的GKT问题类型介导的。文中讨论了这些结果的实际意义。
