Journal Article ON POLYCHORIC COEFFICIENTS OF CORRELATION Get access KARL PEARSON, F.R.S., KARL PEARSON, F.R.S. Search for other works by this author on: Oxford Academic Google Scholar EGON S. PEARSON EGON S. PEARSON Search for other works by this author on: Oxford Academic Google Scholar Biometrika, Volume 14, Issue 1-2, July 1922, Pages 127–156, https://doi.org/10.1093/biomet/14.1-2.127 Published: 01 July 1922
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PEARSON et al. (1922) studied this question.