Chi-Squared statistic Chi-squared statistic for homogeneity A Chi-squared statistic used to test whether observed data from two or more groups follow the same distribution. In meta-analysis, a chi-square statistic for homogeneity is often used to determine the appropriateness of combining the statistics to represent a common population. Kenneth Wilkins, Brian S. Alper, Joanne Dehnbostel, Harold Lehmann Philippe Rocca-Serra SEVCO group ready for release