testinfo_data_SOGSRA: testinfo_data_SOGSRA

In bpoconnor/IRTtestinfo: IRTtestinfo

Description

A data frame with IRT test information coefficients and the corresponding z values for the South Oaks Gambling Screen-Revised for Adolescents, based on responses from 981 participants (Chiesi et al., 2012). The z values are in the first column and the test information values are in the second column.

Usage

data(testinfo_data_SOGSRA)

Source

Chiesi, F, Donati, M. A., Galli, S., & Primi, C. (2013). The Suitability of the SOGS-RA as Screening Tool: Item Response Theory-Based evidence. Psychology of Addictive Behaviors, 27(1), 287-293.

Examples

head(testinfo_data_SOGSRA)

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