Data from Bock & Lieberman (1970); contains 5 dichotomously scored items obtained from the Law School Admissions Test, section 7.
Data from
References
Bock, R. D., & Lieberman, M. (1970). Fitting a response model for n dichotomously scored items. Psychometrika, 35(2), 179-197.
Bock, R. D., & Lieberman, M. (1970). Fitting a response model for n dichotomously scored items. Psychometrika, 35(2), 179-197.
Author
Phil Chalmers rphilip.chalmers@gmail.com
Examples
if (FALSE) { # \dontrun{
dat <- expand.table(LSAT7)
head(dat)
itemstats(dat)
(mod <- mirt(dat, 1))
coef(mod)
} # }
if (FALSE) { # \dontrun{
dat <- expand.table(LSAT7)
head(dat)
itemstats(dat)
(mod <- mirt(dat, 1))
coef(mod)
} # }