Sheet1DifficultyDiscriminationitemno. of respondentsRuRLDifficulty IndexInterpretationDiscrimination IndexInterpretationLegend120680.7AVERAGE-0.2POOR220760.65AVERAGE0.1FAIR320510.3AVERAGE0.4GOOD420430.35AVERAGE0.1FAIR520800.4AVERAGE0.8GOOD620760.65AVERAGE0.1FAIR720290.55AVERAGE-0.7POOR820100.05DIFFICULT0.1FAIR920080.4AVERAGE-0.8POOR1020660.6AVERAGE0POOR

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