Abstract
The two-dimensional size constancy of 24 aged Ss (median age, 71 years) was tested under conditions of corrected and uncorrected vision and with either apparent-or objective-size instructions. Size constancy was significantly above chance when vision was corrected but not when vision was uncorrected. There was no effect of instructions. Acuity was positively correlated with size constancy under both corrected and uncorrected conditions.
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The authors appreciate the co operation of Mr. and Mrs. Szesze, directors of the Senior Pleasure Club in Trenton, N.J., and the members for participating in this study. We are also grateful to Diane Goettler for her assistance in testing the Ss and to Emilia Winters for preparing the figure.
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Winters, J.J., Spitz, H.H. & Johnstone, E.R. The effects of visual acuity and instructions on two-dimensional size constancy. Psychon Sci 22, 195–196 (1971). https://doi.org/10.3758/BF03332565
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DOI: https://doi.org/10.3758/BF03332565