Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: Better assessment of physical function: item improvement is neglected but essential. | Available online http content 11 6 R191 Open Access Research article Better assessment of physical function item improvement is neglected but essential Bonnie Bruce1 James F Fries1 Debbie Ambrosini1 Bharathi Lingala1 Barbara Gandek2 Matthias Rose3 and John E Ware Jr2 Department of Medicine Stanford University School of Medicine 1000 Welch Road Suite 203 Stanford CA 94304 USA 2QualityMetric Inc 640 George Washington Highway Suite 201 Lincoln RI 02865 USA 3Department of Psychosomatic Medicine University Medical Center Hamburg-Eppendorf Martinistrasse 52 20246 Hamburg Germany Corresponding author Bonnie Bruce bbruce@ Received 21 Aug 2009 Revisions requested 24 Sep 2009 Revisions received 17 Nov 2009 Accepted 16 Dec 2009 Published 16 Dec 2009 Arthritis Research Therapy 2009 11 R191 doi 86 ar2890 This article is online at http content 11 6 R191 2009 Bruce et al. licensee BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Introduction Physical function is a key component of patient-reported outcome PRO assessment in rheumatology. Modern psychometric methods such as Item Response Theory IRT and Computerized Adaptive Testing can materially improve measurement precision at the item level. We present the qualitative and quantitative item-evaluation process for developing the Patient Reported Outcomes Measurement Information System PROMIS Physical Function item bank. Methods The process was stepwise we searched extensively to identify extant Physical Function items and then classified and selectively reduced the item pool. We evaluated retained items for content clarity relevance and comprehension reading level and translation ease by experts and patient surveys focus groups
