Efficiency of Generalized Estimating Equations for Binary Responses
Efficiency of Generalized Estimating Equations for Binary Responses
Summary Using standard correlation bounds, we show that in generalized estimation equations (GEEs) the so-called ‘working correlation matrix’R(α) for analysing binary data cannot in general be the true correlation matrix of the data. Methods for estimating the correlation param-eter in current GEE software for binary responses disregard these bounds. To …