\item{\code{sa}:}{
Satterthwaite test, using \code{\link[lmerTest]{summary}}.
This only applies to models fitted with \code{\link[lme4]{lmer}}. This method is faster
than \code{kr}, and almost equally precise (Luke, 2017).}
...
Luke, S. G. (2017). Evaluating significance in linear mixed-effects models in R. Behavior Research
Methods, 49(4), 1494--1502.
Added Satterthwaite (
'sa'
) description to tests.R...