Reale-Caldwell A, Osborn KE, Soble JR, Kamper JE, Rum R, Schoenberg MR. Appl Neuropsychol Adult. WebBest performance approaches to estimating premorbid ability are based upon the assumption that the tests in which patients accrue the highest score are likely to reflect No potential conflict of interest was reported by the author(s). A proposed method to estimate premorbid intelligence utilizing group achievement measures from school records. This is a clinically significant issue as estimates of premorbid intellectual functioning are often compared with current neuropsychological performance to determine the amount of discrepancy between observed and expected scores. Test of Premorbid Functioning The extent to which specific disorders may impact on those abilities assessed with tests such as the NART or WTAR is difficult to predict, particularly for more severely impaired patients or those with language and/or semantic memory impairment, and more work is required in this area. Hsieh et al (2014) identified two cutoffs: 1) 25/30 has both high sensitivity and specificity and 2) 21/30 is almost Proper TOPF scoring procedures are presented. There are a few limitations to the current study. 2004 Mar;19(2):227-43. doi: 10.1016/S0887-6177(03)00092-1. In our sample, the ToPF/demographic predicted FSIQ underestimated intelligence in a substantial portion of our participants (31%), particularly in those with high average to superior intelligence. Mean performance across the subtests was generally similar, with only four significant differences, following Bonferroni correction for multiple comparisons. Mixed ANOVAs were used to determine whether healthy controls, patients with mTBI, and patients with msevTBI performed differently on the WTAR, TMT, and CVLT-II Trials 15 Total between baseline and 1 year following injury. Significantly better performance was observed on the WTAR than the NART [t(91)=19.98, p<.001], indicating both that the NART is the more difficult test, and that discrimination among more cognitively capable individuals on the basis of WTAR performance may be problematic as a result of possible ceiling effects (Table 3). Overall, the level of unexplained variance in performance across hold and no-hold tests in our neurologically healthy sample cautions against the viability of using this method for accurately predicting premorbid ability in cognitively impaired patients. Earn money by contributing to product development, Booklets, record forms, answer sheets, report usages & subscriptions, Manuals, stimulus books, replacement items & other materials, Includes Manual (Print), 25 Report forms (Print) with pre-paid Q-global score reports (Digital), TOPF laminated Word List card (Print).