validateDifficulty {TestDesign}R Documentation

(Internal) Validate item objects

Description

These are internal functions for validating item objects for their item parameters.

Usage

validateDifficulty(object)

validateSlope(object)

validateGuessing(object)

validateNcat(object)

validateNthr(object)

validateCategory(object)

validateOrder(object)

Arguments

object

an item object.

Value

These functions return an error message string if the input object is not valid. These do not return anything for valid objects.


[Package TestDesign version 1.7.0 Index]