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Table 3 Item calibration and fitting for the emotional compromise sub-scale of the Keratoconus End-Points Assessment Questionnaire (KEPAQ-E)

From: Standardizing the measurement and classification of quality of life using the Keratoconus End-Points Assessment Questionnaire (KEPAQ): the ABCDEF keratoconus classification

Question Measure Infit MNSQ Outfit MNSQ
Q_E01 − 0.17 0.97 0.92
Q_E02 − 1.14 1.03 0.78
Q_E03 − 0.53 1.12 1.11
Q_E04 − 0.78 1.00 0.83
Q_E05 − 0.73 1.08 1.06
Q_E06 1.63 0.92 0.99
Q_E07 1.73 1.05 1.10