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Fig. 4 | BMC Ophthalmology

Fig. 4

From: The Quality of Life Impact Refractive Correction (QIRC) questionnaire: validation of the Malay-translated version of the QIRC using Rasch analysis

Fig. 4

Person-item map for the emotional scale for the Final Malay QIRC. The left side of the dashed line represents the participants, with lower ability participants near the top of the map. The right side of the dashed line represents the items, with less difficult items near the top of the map. Each ‘#’ = three participants; each ‘.’ = one participant; M = mean; S = one standard deviation; T = two standard deviations

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