Yates' correction noun phr. ['jeɪts kǝ'rɛkʃ(ǝ)n] Also Yates correction, Yates's correction. M20.
[from Frank Yates (1902-94), English statistician.]
Statistics. A correction for the discreteness of the data that is made in the chi-square test when the number of cases in any class is small and there is one degree of freedom, consisting of the subtraction of 1 / 2 from each difference when evaluating chi squared.

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