|Title||Simulated computerized adaptive test for patients with lumbar spine impairments was efficient and produced valid measures of function|
|Publication Type||Journal Article|
|Year of Publication||2006|
|Authors||Hart, DL, Mioduski, JE, Werneke, MW, Stratford, PW|
|Journal||Journal of Clinical Epidemiology|
|Keywords||Back Pain Functional Scale, computerized adaptive testing, Item Response Theory, Lumbar spine, Rehabilitation, True-score equating|
Objective: To equate physical functioning (PF) items with Back Pain Functional Scale (BPFS) items, develop a computerized adaptive test (CAT) designed to assess lumbar spine functional status (LFS) in people with lumbar spine impairments, and compare discriminant validity of LFS measures (qIRT) generated using all items analyzed with a rating scale Item Response Theory model (RSM) and measures generated using the simulated CAT (qCAT).