Fig. 1. Person-item match for items of parent proxy and child self-reports of the KIDSCREEN-10 questionnaire. The graph represents the relationship among the level of health-related quality of life score and item difficulty calibrations in logits. PARENT, parent proxy report item; CHILD, child self-report item.

Phys. Ther. Korea 2021;28:146~153 https://doi.org/10.12674/ptk.2021.28.2.146

© Physical Therapy Korea