Bock, C. H.; Gottwald, T. R.; Parker, P. E.; Cook, A. Z.; … - 2009
disease compared to direct estimation to the nearest percent. Twenty-eight raters assessed each of two-hundred infected leaves … methods (0.38-1.00). Cumulative mean disease and cumulative variance of the means were calculated for each rater on a leaf … based on estimates by 3, 5, 10, 20 and 28 raters were compared to true disease severity. LCC showed that rater-means based …