ICCDesign: Intraclass Correlation Coefficient (ICC) Design, Calculation and
Interactive 'shiny' Toolkit
A comprehensive toolkit for intraclass correlation coefficient (ICC) analysis,
integrating three core functionalities: (1) Closed-form sample size calculation for ICC
estimation with assurance probability, based on Zou (2012) <doi:10.1002/sim.5466>;
(2) Full implementation of all 10 ICC types (6 common + 4 supplementary) for point
estimation, exact confidence interval calculation, and formal hypothesis testing,
following the methods of McGraw & Wong (1996) <doi:10.1037/1082-989X.1.1.30> and
the standard decision framework; (3) An interactive 'shiny' application that guides users
through ICC type selection, performs calculations, and provides reliability evaluation
based on the Koo & Li (2016) <doi:10.1016/j.jcm.2016.02.012> criteria.
Compared to existing packages, it provides a unified decision workflow and supports
all less common ICC variants.
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