title: Effects of perceived efficacy and prospect of success on detection in the Guilty Actions Test.
abstract: Two experiments were conducted in order to examine factors that might influence the motivation of guilty and informed innocent examinees to either cope or cooperate with the Guilty Actions Test. Guilty participants committed a mock-crime and informed innocent participants handled the critical items of the crime in an innocent context. In Experiment 1 the participants were led to believe that the prospects of being found innocent on the test were either high or low. In Experiment 2 the participants were led to believe that the test was either highly accurate or of questionable validity. Results indicated that for both guilty and informed innocent participants low prospects of success and low detection efficacy of the test were associated with enhanced physiological responses to the critical information, whereas high prospects of success and high detection efficacy were associated with attenuated physiological responses. Theoretical and practical implications of the results are discussed.
authors.affiliation: Ariel University, Ariel Israel. Electronic address: lisaz@ariel.ac.il.
authors.forename: Lisa
authors.initials: L
authors.lastname: Zvi
authors.affiliation: Bar-Ilan University, Ramat Gan, Israel; Ashkelon Academic College, Ashkelon, Israel.
authors.forename: Israel
authors.initials: I
authors.lastname: Nachson
authors.affiliation: Ariel University, Ariel Israel.
authors.forename: Eitan
authors.initials: E
authors.lastname: Elaad
mesh_terms: D000223:Adaptation, Psychological; D000328:Adult; D003299:Cooperative Behavior; D008192:Deception; D005260:Female; D005712:Galvanic Skin Response / Q000502:physiology; D006167:Guilt; D006801:Humans; D008014:Lie Detection; D008297:Male; D011939:Mental Recall; D015999:Multivariate Analysis; D010465:Perception / Q000502:physiology*; D010775:Photic Stimulation; D011603:Psychophysiology; D011674:Pulse; D012372:ROC Curve; D012119:Respiration; D055815:Young Adult
keywords: Concealed Information Test; Detection of deception; Finger pulse; Polygraph; Respiration; Skin conductance response