Sample size for a tetrachoric correlation confidence interval
Source:R/statpsych3.R
size.ci.tetra.Rd
Computes the sample size required to estimate a tetrachoric correlation with desired confidence interval precision. Set the tetrachoric planning value to the smallest absolute value within a plausible range for a conservatively large sample size.
References
Bonett DG, Price RM (2005). “Inferential methods for the tetrachoric correlation coefficient.” Journal of Educational and Behavioral Statistics, 30(2), 213–225. ISSN 1076-9986, doi:10.3102/10769986030002213 .