Description Author(s) References Examples
Data from Bock & Lieberman (1970); contains 5 dichotomously scored items obtained from the Law School Admissions Test, section 7.
Phil Chalmers rphilip.chalmers@gmail.com
Bock, R. D., & Lieberman, M. (1970). Fitting a response model for n dichotomously scored items. Psychometrika, 35(2), 179-197.
Chalmers, R., P. (2012). mirt: A Multidimensional Item Response Theory Package for the R Environment. Journal of Statistical Software, 48(6), 1-29. doi: 10.18637/jss.v048.i06
1 2 3 4 5 6 7 | ## Not run:
dat <- expand.table(LSAT7)
head(dat)
(mod <- mirt(dat, 1))
coef(mod)
## End(Not run)
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