GDINA (version 2.9.4)

itemparm: extract item parameters (deprecated)

Description

This function has been deprecated; use coef instead.

Usage

itemparm(
  object,
  what = c("catprob", "gs", "delta", "rrum", "itemprob", "LCprob"),
  withSE = FALSE,
  SE.type = 2,
  digits = 4,
  ...
)
# S3 method for GDINA
itemparm(
  object,
  what = c("catprob", "gs", "delta", "rrum", "itemprob", "LCprob"),
  withSE = FALSE,
  SE.type = 2,
  digits = 4,
  ...
)

Arguments

object

estimated GDINA object returned from GDINA

what

what to show.

withSE

show standard errors or not?

SE.type

Type of standard errors.

digits

how many decimal places for the ouput?

...

additional arguments

References

Philipp, M., Strobl, C., de la Torre, J., & Zeileis, A.(2017). On the estimation of standard errors in cognitive diagnosis models. Journal of Educational and Behavioral Statistics, 43, 88-115.

Examples

if (FALSE) {
dat <- sim10GDINA$simdat
Q <- sim10GDINA$simQ
fit <- GDINA(dat = dat, Q = Q, model = "GDINA")
# deprecated
itemparm(fit)
coef(fit)
}