ci.agree: Confidence interval for a G-index of agreement

In statpsych: Statistical Methods for Psychologists

Confidence interval for a G-index of agreement

Description

Computes an adjusted Wald confidence interval for a G-index of agreement between two polychotomous ratings. This function requires the number of objects that were given the same rating by both raters. The G-index corrects for chance agreement.

Usage

ci.agree(alpha, n, f, k)

Arguments

alpha	alpha level for 1-alpha confidence
n	sample size
f	number of objects rated in agreement
k	number of rating categories

Value

Returns a 1-row matrix. The columns are:

• Estimate - maximum likelihood estimate of G-index

• SE - standard error

• LL - lower limit of the adjusted Wald confidence interval

• UL - upper limit of the adjusted Wald confidence interval

References

\insertRef

Bonett2022statpsych

Examples

ci.agree(.05, 100, 80, 4)

# Should return:
#  Estimate         SE        LL        UL
# 0.7333333 0.05333333 0.6132949 0.8226025

statpsych documentation built on Sept. 11, 2024, 7:42 p.m.