Kontinuitätskorrektur
Kontinuitätskorrektur refers to a statistical technique used in the analysis of categorical data. It is applied when approximating a discrete distribution with a continuous distribution. The most common application is in the context of the chi-squared test for independence or goodness-of-fit.
Specifically, when performing a chi-squared test with a small sample size, the distribution of the test statistic
The purpose of the continuity correction is to reduce the error introduced by approximating a discrete distribution
While widely used, the necessity and optimal application of the continuity correction are still debated among