R/sirt_antifisherz.R

In alexanderrobitzsch/sirt: Supplementary Item Response Theory Models

Defines functions sirt_antifisherz

Documented in sirt_antifisherz

## File Name: sirt_antifisherz.R
## File Version: 0.04

## see fisherz2r in psych package
sirt_antifisherz <- function(z)
{
    ( exp(2*z) - 1 ) / ( exp(2*z) + 1 )
}