% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/core-icc.R
\name{icc_calc_1_k}
\alias{icc_calc_1_k}
\title{Calculate ICC(1,k)}
\usage{
icc_calc_1_k(data_matrix, alpha = 0.05, rho0 = NULL, interaction = TRUE)
}
\arguments{
\item{data_matrix}{A standardized numeric matrix from \code{icc_preprocess_data}.
Rows = subjects, columns = raters/measurements.}

\item{alpha}{Significance level for confidence interval, default 0.05.}

\item{rho0}{Optional null hypothesis value for non-zero test, default NULL.}

\item{interaction}{Logical, whether to include interaction term (ignored for one-way).}
}
\value{
A standardized list containing ICC results.
}
\description{
Calculates the Intraclass Correlation Coefficient (ICC) for a one-way
random effects model using the average of k raters/measurements, focusing
on absolute agreement.
}
\references{
McGraw, K. O., & Wong, S. P. (1996).
}
\keyword{internal}
