person_fit
calculates the fit of a person to a given psychometric
model.
person_fit(ip, resp, theta, type = "lz")# S4 method for Item
person_fit(ip, resp, theta, type = "lz")
# S4 method for Itempool
person_fit(ip, resp, theta, type = "lz")
# S4 method for Testlet
person_fit(ip, resp, theta, type = "lz")
An Item-class
, Itempool-class
or a
Testlet-class
object.
A vector of item responses.
An vector containing ability parameters.
The type of the person-fit index.
A vector of person-fit index values.