Fig. 3
From: Treatment-seeking behaviour in low- and middle-income countries estimated using a Bayesian model
Panel plots showing. a Fever response decay curves from the four model parameter values from the DHS survey in Namibia for 2014. The data are from 1138 (n = 891 training, 247validation) children under the age of five reporting fever 2 weeks prior to survey of which 726 sought treatment in the formal sector. b A scatterplot for mean estimates on α(intercept) and β (slope) parameters based on model 4 (random slope and intercept model at individual level). c Posterior density for IRT parameters (aindividual discriminant parameter, b item dificulty, and c probability threshold). d Receiver operating characteristic (ROC) plot based on the validation dataset (n = 247 children). The binary classification was based on the predicted probability of seeking treatment for fever (from model 1) with a cut-off at 0.65. ROC had AUC = 0.978 and an accuracy measure of 0.887