An acceptable range for the Coefficient of Dispersion (COD) when measuring the uniformity of residential property is what values?

The Coefficient of Dispersion (COD) is a crucial statistical measure used in assessing the uniformity of property values in residential areas. An acceptable range for the COD indicates the level of consistency in property assessments—lower values indicating a tighter grouping of assessed values around the median value.

A COD of 0 to 0.15 suggests a high degree of uniformity in property assessments. This range signifies that the assessments are closely aligned with the median, minimizing discrepancies that might arise from varying property characteristics or appraisal methods. A COD greater than this range, such as 0.20 or higher, would suggest more variability and inconsistency in property assessments, which can raise concerns regarding equity and fairness in tax assessments or market valuations.

This context provides clarity on why the value of 0 to 0.15 is recognized as the appropriate acceptable range for the COD when measuring the uniformity of residential properties.