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Published online by Cambridge University Press: 01 January 2025
A selection of statistical problems commonly encountered in psychological or psychiatric research concerning correlation coefficients are re-evaluated in the light of recently developed simplifications in the forms of the distribution theory of the intraclass correlation coefficient (exact theory), of the product-moment correlation coefficient and of the Spearman rank correlation coefficient (approximate).
Helena Chmura Kraemer is Associate Professor of Biostat, istics in Psychiatry, Department of Psychiatry and Behavioral Science, Stanford Medical School, Stanford, California 94305.