Yates correction

A continuity correction used in certain problems in mathematical statistics (e.g. in the problem of testing statistical independence). It is used to improve the approximation by a $\chi^2$-distribution of the $\chi^2$-test statistic (cf. also Chi-squared distribution; Chi-squared test). It was proposed by J. Yates [1].

References

[1]	J. Yates, Trans. Roy. Stat. Soc. , 1 (1934) pp. 217
[2]	H. Cramér, "Mathematical methods of statistics" , Princeton Univ. Press (1946)