Abstract
An attempt was made to identify the best method of locating the egocenter by comparing the predictive validity and reliability of the four methods introduced by Fry (1950), Funaishi (1926), Howard and Templeton (1966), and Roelofs (1959). To determine predictive validity, egocenters located by these methods were used to predict the responses of 14 subjects on three visual direction tasks; the correlation between the predicted and the actual responses on each task was computed. To determine reliability, the test-retest stability and the internal consistency were estimated for each method. All of the methods were reliable, but only the Howard and Templeton method predicted the results on all three of the visual direction tasks. The high reliability and predictive validity of the Howard and Templeton method is attributed to its high precision.
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This research was supported by Grant A0296 from the National Research Council of Canada to the second author. Reprint requests should be addressed to the second author. The authors wish to thank their many colleagues in visual perception at York University for their helpful comments on an earlier version of this paper.
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Barbeito, R., Ono, H. Four methods of locating the egocenter: A comparison of their predictive validities and reliabilities. Behavior Research Methods & Instrumentation 11, 31–36 (1979). https://doi.org/10.3758/BF03205428
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DOI: https://doi.org/10.3758/BF03205428