Experiment 1 compared the effectiveness of the ''cognitive' interview based on memory retrieval methods from current memory theory, the forensic hypnosis interview, and the standard (control) police interview. These methods were evaluated empirically under controlled, realistic circumstances. Subjects viewed films of simulated violent crimes and were interviewed individually 48 hours later by experienced police personnel. Both the cognitive and hypnosis procedures elicited significantly more current information than did the standard police interview. The amount of incorrect or confabulated information did not differ across the three interview conditions. Experiment 2 replicated the memory-enhancement qualities of the cognitive interview with nonstudent, lesser educated witnesses. Experiment 3 evaluated each of the constituent parts of the cognitive interview independently, showing that each method is useful and should be retained in the cognitive interview procedure. Experiment 4 assessed the effectiveness of the cognitive interview when misleading questions are asked. It reduced the probability that the misleading questions would affect the eyewitness report. 65 references and tabular data. (Author abstract modified)
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