Open AccessAge-related Differential Item Functioning for the Patient-reported Outcomes Information System (PROMIS) Physical Functioning Items
Author(s) -
Sylvia H. Paz
Publication year - 2013
Publication title -
primary health care
Language(s) - English
Resource type - Journals
ISSN - 2167-1079
DOI - 10.4172/2167-1079.1000131
Subject(s) - differential item functioning , equivalence (formal languages) , item response theory , internal consistency , item bank , short forms , psychology , patient reported outcomes measurement information system , psychometrics , clinical psychology , medicine , mathematics , computerized adaptive testing , discrete mathematics
To evaluate the equivalence of the PROMIS® wave 1 physical functioning item bank, by age (50 years or older versus 18-49).