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PubMed · 15652638

Power calculation for the likelihood ratio-test when comparing two dependent intraclass correlation coefficients.

B Giraudeau·R Porcher·J Y Mary
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Abstract

Comparing the reproducibility level of two devices with continuous outcome on a unique sample of subjects (each subject being assessed several times with both devices) comes down to compare two dependent intraclass correlation coefficients (ICCs). When planning such a reproducibility study, one has to specify both the number of subjects to be included and the number of replicates per subject associated to each device. We propose SAS and S-plus macros, which allow power calculations by implementing a simulation study where dependent ICCs are compared by means of a likelihood ratio-test.

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Data Interpretation, StatisticalFranceLikelihood FunctionsModels, StatisticalReproducibility of ResultsSampling StudiesJournal Article

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B Giraudeau, R Porcher, J Y Mary. 2005. Power calculation for the likelihood ratio-test when comparing two dependent intraclass correlation coefficients.. https://doi.org/10.1016/j.cmpb.2004.10.001

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