Abstract

Factor analyses were conducted on measures of field dependence and cognitive abilities to test some hypotheses about the nature of individual differences in orientation perception. Some hypotheses were also tested about relationships between the rod-and-frame and embedded-figures tests that are commonly used to measure the field-dependence dimension. The data are consistent with a model of the rod-and-frame test in which errors are attributed to two effects of the frame. The first is mediated by a rotation of perceptual axes, normally involved in the maintenance of orientation constancy, and the second involves a distortion in perceived angles between the rod and the frame sides. Individual differences in orientation perception are related to the embedded-figures test as expected, but they are just as highly related to many other tests of spatial-visual abilities. These relationships appear due to the constancy component of the RFT.

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