Fig. 2From: Development of an item bank for the EORTC Role Functioning Computer Adaptive Test (EORTC RF-CAT)Information curves for the full item bank and for the two QLQ-C30 RF items only, respectively. The RF scores obtained if answering “not at all”, “a little”, “quite a bit”, or “very much”, respectively to all 10 items are indicated at the horizontal axis. Theta scores were estimated using EAPBack to article page