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Journal of Dental Research, Vol 64, 919-921, Copyright © 1985 by International & American Associations for Dental Research Online Journals

ARTICLES

Adjusting craniofacial correlations for technical error

P. H. Buschang, R. Tanguay, L. La Palme and A. Demirjian

Reliability estimates provide a means of adjusting observed correlations for technical error. The results show that the true correlations among 11 craniofacial landmarks are consistently higher than observed values. Consequently, the regression slopes defining these relationships are also increased. The less reliable two measures are, and the closer their joint reliability approximates the observed correlation, the greater the expected change in true correlation. Adjusting craniofacial relationships for technical error may substantially increase the proportion of variation explained, and thereby alter statistical inferences drawn from results.




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