Trunk = overall mean across all respondentsBranch (dashed) = cluster mean ± 1 standard deviationOrder top → bottom: F-ratio descending (top best-separating)Schematic illustration to demonstrate the principle
At the top are the characteristics with the highest F-ratio — small dispersion, clear position relative to the trunk: they separate the segments best. Toward the bottom the dispersion grows, the clusters overlap — separating power decreases.