TY - JOUR
T1 - The effects of prior expectations and outcome knowledge on polygraph examiners' decisions
AU - Elaad, Eitan
AU - Ginton, Avital
AU - Ben-Shakhar, Gershon
N1 - Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 1994/12
Y1 - 1994/12
N2 - The present study deals with the question of whether judgments made by experts working in familiar contexts are affected by prior expectations and beliefs. Two experiments in which prior expectations were manipulated were designed to determine whether and to what extent polygraph examiners are affected by their prior expectations when analyzing and interpreting polygraph charts. Prior expectations affected the examiners' judgments when the polygraph charts did not include clear indications of guilt or innocence, but when the objective physiological evidence included strong indications which clearly contradicted the examiner's expectations, judgments were not affected by these expectations. Theoretical and practical implications of these results are discussed.
AB - The present study deals with the question of whether judgments made by experts working in familiar contexts are affected by prior expectations and beliefs. Two experiments in which prior expectations were manipulated were designed to determine whether and to what extent polygraph examiners are affected by their prior expectations when analyzing and interpreting polygraph charts. Prior expectations affected the examiners' judgments when the polygraph charts did not include clear indications of guilt or innocence, but when the objective physiological evidence included strong indications which clearly contradicted the examiner's expectations, judgments were not affected by these expectations. Theoretical and practical implications of these results are discussed.
KW - Control question technique
KW - Hindsight bias
KW - Hypothesis‐confirmation bias
KW - Outcome knowledge
KW - Polygraph
KW - Prior expectations
UR - http://www.scopus.com/inward/record.url?scp=84980148326&partnerID=8YFLogxK
U2 - 10.1002/bdm.3960070405
DO - 10.1002/bdm.3960070405
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AN - SCOPUS:84980148326
SN - 0894-3257
VL - 7
SP - 279
EP - 292
JO - Journal of Behavioral Decision Making
JF - Journal of Behavioral Decision Making
IS - 4
ER -