bhapkar {irr}R Documentation

Bhapkar coefficient of concordance between raters

Description

Calculates the Bhapkar coefficient of concordance for two raters.

Usage

bhapkar(ratings)

Arguments

ratings n*2 matrix or dataframe, n subjects 2 raters.

Details

Missing data are omitted in a listwise way. The Bhapkar (1966) test is a more powerful alternative to the Stuart-Maxwell test. Both tests are asymptotically equivalent and will produce comparable chi-squared values when applied a large sample of rated objects.

Value

A list with class "irrlist" containing the following components:

$method a character string describing the method.
$subjects the number of data objects.
$raters the number of raters.
$irr.name the name of the coefficient (Chisq).
$value the value of the coefficient.
$stat.name the name and df of the test statistic.
$statistic the value of the test statistic.
$p.value the probability of the test statistic.

Author(s)

Matthias Gamer

References

Bhapkar, V.P. (1966). A note on the equivalence of two test criteria for hypotheses in categorical data. Journal of the American Statistical Association, 61, 228-235.

See Also

mcnemar.test, stuart.maxwell.mh, rater.bias

Examples

data(vision)
bhapkar(vision) # Original example used from Bhapkar (1966)

[Package irr version 0.70 Index]