A 5-item data set analyzed by Bartholomew (1998). Data contains dichotomous responses (endorsement vs non-endorsement) from 1490 German respondents to five statements on perceptions of social life.
References
Bartholomew, D., J. (1998). Scaling unobservable constructs in social science. Journal of the Royal Statistical Society - Series C, 47, 1-13.
Author
Phil Chalmers rphilip.chalmers@gmail.com
Examples
if (FALSE) { # \dontrun{
# tabular format
data(SLF)
SLF
# full dataset
full <- expand.table(SLF)
itemstats(full)
mod <- mirt(full)
plot(mod, type = 'trace')
} # }