Nih toolbox premorbid ability adjustments: Application in a traumatic brain injury sample.

Premorbid ability affects identification of cognitive difficulties after TBI. Reading referenced scores provide an individualized estimate of the effects of premorbid ability than demographic characteristics alone. Each model identified a similar number of individuals as having cognitive difficulties; however, the models differed on which individuals had cognitive difficulties. The models had higher disagreement rates in the clinical compared with the comparison sample, particularly for individuals with lower premorbid ability. Clinical use and caveats are discussed. (PsycINFO Database Record