Computes simple and extended percentage agreement among raters.
Usage
agree(ratings, tolerance=0)
Arguments
ratings
n*m matrix or dataframe, n subjects m raters.
tolerance
number of successive rating categories that should be regarded as rater agreement (see details).
Value
A list with class '"irrlist"' containing the following components:
$method
a character string describing the method applied for the computation of interrater reliability.
$subjects
the number of subjects examined.
$raters
the number of raters.
$irr.name
a character string specifying the name of the coefficient.
$value
coefficient of interrater reliability.
Details
Missing data are omitted in a listwise way.
Using extended percentage agreement (tolerance!=0) is only possible for numerical values. If tolerance equals 1, for example, raters differing by one scale degree are interpreted as agreeing.