The effects of two interview techniques, the Cognitive Interview (CI) and the Structured Interview (SI), were examined in relation to recall, recognition, confidence and the confidence/accuracy relationship. Volunteer subjects witnessed a live staged event, and at set time delays (48 and 96 hours) were interviewed by means of either the CI or SI and made lineup identifications from both blank and filled lineup presentations. The CI significantly improved total recall (p<0.001) and correct recall (p<0.001) relative to the SI. There were no differences in either accuracy or error rates for the two conditions. The CI produced significantly higher ‘pre‐post interview’ confidence ratings than the SI (p<0.05). Within‐, between‐ and event‐confidence ratings were not predictive of recall or recognition accuracy. Failure to find a significant consistent confidence/accuracy relationship was suggested to have occurred because of the operation of an accuracy assessment heuristic. The CI did not reliably improve identification from a filled lineup presentation relative to the SI, but did produce better performance on a blank lineup presentation (p<0.001). Confidence and the confidence/accuracy relationship involving identifications were not found to differ as a function of interview condition. Throughout the study multiple regression analyses failed to reveal consistent predictors of recall or recognition accuracy, confidence or the confidence/accuracy relationship of these two domains. © 1997 by John Wiley & Sons, Ltd.

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