<qa>  What is the aim of the discordancy analysis?The Click-MUAC devices are screeningdiagnostic devices. Appropriate measures of agreement between the different measurer groups mothersprimary caregivers, IMAM staff, gold standard can be calculated from two-by-two contingency tables. The following appropriate measures of agreement will be calculated from these tables: sensitivity, specificity, accuracy, Cohen s Kappa, Youndens J. The analysis i.e. two-by-two contingency table and estimation of appropriate measures of agreement will be performed for each prototype Click-MUAC device. A discordancy analysis will also be performed. The aim of the discordancy analysis is to describe misclassifications in terms of the range, interquartile range, and median MUAC at each type of discordancy. This analysis provides further calibration information that may inform design changes that avoidminimize gross misclassifications and to minimize the frequency of errors made at or close to class boundaries. 