testinfo_data_NEO_FFI_A: testinfo_data_NEO_FFI_A

In bpoconnor/IRTtestinfo: IRTtestinfo

Description

A data frame with IRT test information coefficients and the corresponding z values for the NEO-FFI Antagonism-Agreeableness scale, based on responses from 1229 participants in the MacArthur Violence Risk Assessment Study dataset (Monahan 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_NEO_FFI_A)

Source

Monahan, J., Steadman, H., Silver, E., Appelbaum, P., Robbins, P., Mulvey, E., Roth, L., Grisso, T., & Banks, S. (2001). Rethinking Risk Assessment: The MacArthur Study of Mental Disorder and Violence. New York: Oxford University Press.

Examples

head(testinfo_data_NEO_FFI_A)

plot(testinfo_data_NEO_FFI_A, type="l", 
     ylim=c(0,(max(testinfo_data_NEO_FFI_A[,2])+1)), 
     xlim=c((min(testinfo_data_NEO_FFI_A[,1])-1),(max(testinfo_data_NEO_FFI_A[,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.