se.agree: Computes the estimate and standard error for a G-index of agreement
Description
Computes an adjusted G-index of agreement for two raters using the number
of objects rated in agreement, the sample size (number of objects), and
the number of rating categories. The adjustment for the G-index and its
standard error is optimized for the the number of planned studies in the
meta-analysis. The G-index and standard error output from this function
can be used as input in the meta.ave.gen,
meta.lc.gen, and meta.lm.gen functions.
The G-index is usually preferred to Cohen's kappa.