title: Note on an Identity Between Two Unbiased Variance Estimators for the Grand Mean in a Simple Random Effects Model.
abstract: We demonstrate the algebraic equivalence of two unbiased variance estimators for the sample grand mean in a random sample of subjects from an infinite population where subjects provide repeated observations following a homoscedastic random effects model.
authors.affiliation: Department of Biostatistics, Columbia University, 722 West 168th Street 6 Floor, New York, NY 10032, USA.
authors.forename: Bruce
authors.initials: B
authors.lastname: Levin
authors.forename: Cheng-Shiun
authors.initials: CS
authors.lastname: Leu
keywords: Intraclass correlation coefficient; Random effects; Ratio-unbiased estimators; Unbiased estimators; Variance estimators; Variance inflation factor