10.1371/journal.pone.0185287.g004 Xianchai Lin Xianchai Lin Ziyan Chen Ziyan Chen Ling Jin Ling Jin Wuyou Gao Wuyou Gao Bo Qu Bo Qu Yajing Zuo Yajing Zuo Rongjiao Liu Rongjiao Liu Minbin Yu Minbin Yu Person-item location distribution for HADS- Total. Public Library of Science 2017 Chinese cataract patients Purpose HADS-T Rasch model Rasch analysis HADS-A HADS-D Chinese cataract population depression subscales person separation index HADS DIF Results Rasch analysis rescoring items D 14 anxiety 2017-09-26 17:33:32 Figure https://plos.figshare.com/articles/figure/Person-item_location_distribution_for_HADS-_Total_/5444560 <p>Person-item location distribution for HADS- Total.</p>