PSYCH 3CC3 Study Guide - Midterm Guide: Lie Detection, Cognitive Load
17 Feb 2016
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How good at detecting deception: ekman & o"sullivan (1991) film. accuracy) group) officers). P"s correctly or incorrectly report positive feelings while watching pleasurable or gruesome. Truth judged by secret service, fbi, judges, police, psychiatrists, university students, adults taking one-day course on deceit. Videos previously found to contain nonverbal cues to lying: masking smiles and higher pitch. Only u. s. secret service agents judge better than chance, and than all other groups (64% Judges asked to rate both general lie-detection ability, and their performance in the task. Accuracy uncorrelated with ratings of general ability or task performance (except for deceit. Several earlier studies found no evidence that experts" better at lie detection than. Forensic relevance unclear: most forensic lies not about currently felt emotion: ekman, o"sullivan & frank (1999) P"s make true or false statements about their opinions on videotape. U. s. law enforcement officials and psychologists judge honesty while viewing videotapes.
