1993 volume 22(9) pages 1051 – 1060
doi:10.1068/p221051

Cite as:
Leibowitz H W, Guzy L T, Peterson E, Blake P T, 1993, "Quantitative perceptual estimates: verbal versus nonverbal retrieval techniques" Perception 22(9) 1051 – 1060
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Quantitative perceptual estimates: verbal versus nonverbal retrieval techniques

Herschel W Leibowitz, Lawrence T Guzy, Ellen Peterson, Patrick T Blake

Received 30 January 1992, in revised form 25 July 1992

Abstract. Examples of the inaccessibility of mental processes by means of verbal recall are described with particular reference to the accuracy of quantitative estimates of size, distance, and duration. Evidence is presented in support of the hypothesis that nonverbal retrieval techniques are more accurate than quantitative verbal estimates. Implications for the judicial process are considered.

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