Fig. 3
From: Catquest-9SF questionnaire: validation of Malay and Chinese-language versions using Rasch analysis
Person-item map of Malay-language version of Catquest-9SF The participants are located on the left of the dashed line, with less disabled participants located at the bottom of the map. Items are located on the right of the dashed line and more difficult items are located at the bottom of the map. Each ‘#’ represents 2 participants and each ‘.’ represents 1 participant. (M = mean; S = 1 standard deviation; T = 2 standard deviations)