Dispersion Tests are used to calculate the degree of clustering or dispersion of phenomena or individuals:
- For a quick measurement, locate the Median Center on a map
- For a coarse (less precise) degree of precision (minimum sample required = 8 points observed): use the simple Inter-Quartile Range and the Index of Dispersion
- For a finer degree a precision: use the more complicated Nearest Neighbor Index
- To determine the spatial distribution (clustering/dispersal) of a phenomenon in a district, compared to an entire region (used for spatial data, human geography, economics), use the simple Location Quotients method