Fig. 3

Person-item map for the functional scale of 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