AssessmentItem RefId AssessmentFormRefId ResponseType ItemLabel ItemName LearningStandardItems LearningStandardItemRefId Stimulus Stem ResponseChoices Choice ChoiceLabel ChoiceContent CreditValue ItemScoreMaximum ItemScoreMinimum PerformanceLevels PerformanceLevel LevelName CutScores ScoreMetric LowerCut UpperCut SIF_Metadata SIF_ExtendedElements