NAPTestItem RefId LocalId ItemTypeList Domain Subdomain WritingGenre ItemDescriptor ReleasedStatus CorrectAnswer MaximumScore ItemDifficulty ItemProficiencyBand ItemProficiencyLevel ExemplarURL NAPTestletList ItemSubstitutedForRefId SubstituteItemPNPCodeList ContentDescriptionList MarkingType StimulusList NAPWritingRubricList SIF_Metadata SIF_ExtendedElements