Hi all,
I am trying to calculated intra cluster correlation for binary variables using R. I managed to get the estimates and the confidence intervals. But I couldn't get the standard error of the estimates and average cluster size.
Can somebody guide, how to modify the coding to obtain, standard error and the cluster size in the same codes
The Intracluster Correlation Coefficient (ICC) is a major parameter of interest in cluster randomized trials that measures the degree to which responses within the same cluster are correlated. There are several types of ICC estimators and its confidence intervals (CI) suggested in the literature for binary data. Studies have compared relative weaknesses and advantages of ICC estimators as well as its CI for binary data and suggested situations where one is advantageous in practical research. The commonly used statistical computing systems currently facilitate estimation of only a very few variants of ICC and its CI. To address the limitations of current statistical packages, we developed an R package, ICCbin, to facilitate estimating ICC and its CI for binary responses using different methods.
I am also calculating the ICC for cluster randomized trial. I have used random intercept model to calculate.
Hope it helps!
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