dif: Evaluate Differential Item Functioning (DIF) of a test
Description
dif
evaluates Differential Item Functioning (DIF) of a test.
Usage
dif(resp, group, focal_name, ip = NULL, type = "mh")
Arguments
resp
A vector of item responses.
focal_name
In the group variable, the value that represents the focal
group.
type
The type of the DIF method.
Value
A data.frame of DIF values.