calculate person (incidental) parameters

Function to calculate various person attribute parameters, including "EAP", "MAP", and "MLE", for EAP, MAP and MLE estimates of attribute patterns (see Huebner & Wang, 2011), "mp" for marginal mastery probabilities, and "HO" for higher-order ability estimates if a higher-order model is fitted. See GDINA for examples.

personparm(object, what = c("EAP", "MAP", "MLE", "mp", "HO"), digits = 4, ...)

Arguments

object: estimated GDINA object returned from GDINA
what: what to extract; It can be "EAP", "MAP", and "MLE", for EAP, MAP and MLE estimates of attribute patterns, and "mp" for marginal mastery probabilities, and "HO" for higher-order ability estimates if a higher-order model is fitted.
digits: number of decimal places.
...: additional arguments

References

Huebner, A., & Wang, C. (2011). A note on comparing examinee classification methods for cognitive diagnosis models. Educational and Psychological Measurement, 71, 407-419.

Author

Wenchao Ma, The University of Alabama, wenchao.ma@ua.edu
Jimmy de la Torre, The University of Hong Kong

Examples

if (FALSE) {
dat <- sim10GDINA$simdat
Q <- sim10GDINA$simQ
fit <- GDINA(dat = dat, Q = Q, model = "GDINA")
# EAP
head(personparm(fit))
# MAP
head(personparm(fit, what = "MAP"))
}