Tukey's HSD

Tukey's Honestly Significant Difference (HSD) is a statistical method used to compare multiple groups after an experiment to see which ones are significantly different from each other. It helps determine if the differences in averages are meaningful or just due to chance. By calculating a specific threshold, Tukey's HSD tells us whether the difference between any two group means is large enough to be considered statistically significant, controlling the overall probability of false positives. This allows researchers to make informed decisions about differences among multiple groups with confidence.