item_target function

Computation of Item Targets for Polytomous Models

The item target is the value of the person parameter where item information is maximized.

item_target(obj)

Arguments

• obj: An object of class "eRm" (but not "dRm"), a fitted partial credit model using the function PCM in package eRm or of class "pcmodel" (from package psychotools).

Returns

vector with item targets.

Examples

## Not run:

 pc.mod <- PCM(desc2[, 5:14])
 item_target(pc.mod)
## End(Not run)

Author(s)

Marianne Mueller