James W. Varni|Brian D. Stucky|David Thissen|Esi Morgan DeWitt|Debra E. Irwin|Jin Shei Lai|Karin Yeatts|Darren A. DeWalt
PROMIS Pediatric Pain Interference Scale: An Item Response Theory Analysis of the Pediatric Pain Item Bank
Texas A&M University|University of North Carolina at Chapel Hill|University of North Carolina at Chapel Hill|Cincinnati Children's Hospital Medical Center|University of North Carolina at Chapel Hill|Northwestern University|University of North Carolina at Chapel Hill|University of North Carolina at Chapel Hill
aim national institutes health nih patient reported outcomes measurement information system promis initiative develop item banks computerized adaptive tests cat applicable across wide variety chronic disorders promis pediatric cooperative group concentrated development pediatric selfreport item banks ages 8 17 years objective present study describe item response theory irt analysis nih promis pediatric pain item bank measurement properties new unidimensional promis pediatric pain interference scale test forms containing pediatric pain items completed total 3048 respondents irt analyses regarding scale dimensionality item local dependence differential item functioning conducted pain item pool developed yield scores tscore scale mean 50 standard deviation 10 recommended 8item unidimensional short form promis pediatric pain interference scale contains item set provides maximum test information mean 50 tscore metric simulated cat computed provides information 5 possible score locations 30 40 50 60 70 tscore metricthe present study provides initial calibrations nih promis pediatric pain item bank creation promis pediatric pain interference scale anticipated new scale application pediatric chronic recurrent pain