Spearman's rank-order coefficient

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Spearman's rank-order coefficient

(ˈspɪəmənz)
n
(Statistics) a statistic measuring the extent to which two sets of discrete data place the distinct items in the same order, given by rS = 16Σd2/n(n21), where Σd2 is the sum of the squares of the differences of ranks between the two orderings and n is the number of items in each. Also called: Spearman's rank-order correlation coefficient
[named after Charles E. Spearman (1863–1945), English mathematician and statistician]
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