testinfo_data_PCL_R: testinfo_data_PCL_R

In bpoconnor/IRTtestinfo: IRTtestinfo

Description

A data frame with IRT test information coefficients and the corresponding z values for the Psychopathy Checklist-Revised (PCL-R), based on responses from 715 participants (Cooke et al., 2001). The z values are in the first column and the test information values are in the second column.

Usage

data(testinfo_data_PCL_R)

Source

Cooke, D. J., Kosson, D. S. & Michie, C. (2001)_Psychopathy and ethnicity: structural, item and test generalizability of the Psychopathy Checklist Revised (PCL-R) in Caucasian and African-American participants._Psychological Assessment,_13,_531- 542.

Examples

head(testinfo_data_PCL_R)

plot(testinfo_data_PCL_R, type="l", 
     ylim=c(0,(max(testinfo_data_PCL_R[,2])+1)), 
     xlim=c((min(testinfo_data_PCL_R[,1])-1),(max(testinfo_data_PCL_R[,1])+1)), 
     xlab="Latent Trait", ylab="Test Information", 
     main="Test Information Function for the NEO-FFI-A Scale", font.lab=2, cex.lab=1.3)
## Not run: 

bpoconnor/IRTtestinfo documentation built on Sept. 18, 2020, 11:47 a.m.