Data in wide format with only numeric columns corresponding to
raters' ratings.
nboot
Number of bootstrap samples for computing confidence interval
for the effect size (Default: 100).
conf.type
A vector of character strings representing the type of
intervals required. The value should be any subset of the values "norm",
"basic", "perc", "bca". For more, see ?boot::boot.ci.
conf.level
Scalar between 0 and 1. If unspecified, the defaults return
95% lower and upper confidence intervals (0.95).