Computes the sample size required to estimate a population G-index of
agreement for two dichotomous ratings with desired confidence interval
precision. Set the G-index planning value to the smallest value within a
plausible range for a conservatively large sample size.
For more details, see Section 3.12 of Bonett (2021, Volume 3)
Usage
size.ci.agree(alpha, G, w)
Arguments
- alpha
alpha level for 1-alpha confidence
- G
planning value of G-index
- w
desired confidence interval width
Value
Returns the required sample size
References
Bonett DG (2021).
Statistical Methods for Psychologists https://dgbonett.sites.ucsc.edu/.
Examples
size.ci.agree(.05, .8, .2)
#> Sample size
#> 139
# Should return:
# Sample size
# 139