Coefficient of Variation

Coefficient of variation (CV) is a measurement that statisticians use to compare the variance in an estimate to the size of the estimate itself, and it is calculated using the standard error.  Estimates with high CVs are less reliable than estimates with low CVs. The table below shows the levels of reliability that Forsyth Futures assigns data by CV.  For the Making Progress reports and special issue studies, Forsyth Futures generally only uses estimates with CVs below 12 and indicates when the CV for an estimate is between 12 and 30.  Forsyth Futures does not use estimates with CVs higher than 30 in the Making Progress reports. 
Table: Coefficient of Variation as related to Forsyth Futures Level of Reliability