item_object_validation_methods function

(Internal) Validate item objects

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

validateDifficulty(object)

validateSlope(object)

validateGuessing(object)

validateNcat(object)

validateNthr(object)

validateCategory(object)

validateOrder(object)

Arguments

• object: an item object.

Returns

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