Jayatillake, R.V.Sooriyarachchi, M.R.Senerathna, D.L.P.2012-06-272012-06-272011Journal of the National Science Foundation of Sri Lanka39(3)pp.211-218https://dl.nsf.gov.lk/handle/1/9014MathematicsRegression analysisLogistic regressionCluster effectHuber formulaRandom effectStatisticsAdjusting for a cluster effect in the logistic regression model. an illustration of theory and its applicationArticle