Jakob Bue Bjørner|M. Rose|Barbara Gandek|Arthur A. Stone|Doerte U. Junghaenel|John E. Ware
Difference in method of administration did not significantly impact item response: an IRT-based analysis from the Patient-Reported Outcomes Measurement Information System (PROMIS) initiative
Charité - Universitätsmedizin Berlin|University of Massachusetts Chan Medical School|Stony Brook University|Stony Brook University|University of Massachusetts Chan Medical School
test impact method administration moa measurement characteristics items developed patientreported outcomes measurement information system promistwo nonoverlapping parallel 8item forms three promis domains physical function fatigue depression completed 923 adults age 1889 chronic obstructive pulmonary disease depression rheumatoid arthritis randomized crossover design subjects answered one form interactive voice response ivr technology paper questionnaire pq personal digital assistant pda personal computer pc internet second form pc administration structural invariance equivalence item responses measurement precision evaluated using confirmatory factor analysis item response theory methodsmultigroup confirmatory factor analysis supported equivalence factor structure across moa analyses item response theory found differences item location parameters strongly supported equivalence scores across moawe found statistically clinically significant differences score levels ivr pq pda administration compared pc availability large item response theorycalibrated promis item banks allowed innovations study design analysis