Uncorrected versus demographically-corrected scores on the NIH toolbox cognition battery in persons with traumatic brain injury and stroke

So rather than solve any of the problems in stroke, they take the easy route and just do analysis that does nothing for getting survivors to 100% recovery. What a fucking waste of time and money.  I would ream out those mentors and senior researchers that approve this crap.
https://search.naric.com/research/rehab/redesign_record.cfm?search=2&type=all&criteria=J77635&phrase=no&rec=135601&article_source=Rehab&international=0&international_language=&international_location=
Rehabilitation Psychology , Volume 62(4) , Pgs. 485-495.

NARIC Accession Number: J77635.  What's this?
ISSN: 0090-5550.
Author(s): Nitsch, Kristian P.; Casaletto, Kaitlin B.; Carlozzi, Noelle E.; Tulsky, David S.; Heinemann, Allen W.; Heaton, Robert K..
Project Number: 90RT5008 (formerly H133B090024).
Publication Year: 2017.
Number of Pages: 11.
Abstract: Study compared uncorrected versus demographically corrected scores on the National Institutes of Health Toolbox-Cognition Battery (NIHTB-CB) in individuals with traumatic brain injury (TBI) and stroke. Three hundred ninety-five adults with TBI or stroke were demographically matched to 394 non-injured controls, and were administered the NIHTB-CB. Published “corrected scores” are adjusted for age, education, sex, and race/ethnicity; “uncorrected scores” were created using census data to represent the average adult in the United States population. Results showed effect sizes for the TBI and stroke groups versus controls were larger using corrected scores compared with uncorrected scores for the fluid composite. For the crystallized composite, effect sizes for the TBI and stroke groups versus controls were smaller and nonsignificant using corrected scores. In the injury groups, demographic characteristics accounted for up to 33 percent of variance in uncorrected scores, but less than 5 percent of variance in corrected scores. Corrected scores were more sensitive to neurocognitive impairments in the brain-injured groups. Corrected scores have the advantage of controlling for variance associated with premorbid factors rather than changes in neurological functioning; are more helpful in characterizing acquired neurocognitive changes; and can aid in the interpretation of test performance.
Descriptor Terms: BRAIN INJURIES, COGNITION, DEMOGRAPHICS, MEASUREMENTS, OUTCOMES, STROKE.


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Citation: Nitsch, Kristian P., Casaletto, Kaitlin B., Carlozzi, Noelle E., Tulsky, David S., Heinemann, Allen W., Heaton, Robert K.. (2017). Uncorrected versus demographically-corrected scores on the NIH toolbox cognition battery in persons with traumatic brain injury and stroke.  Rehabilitation Psychology , 62(4), Pgs. 485-495. Retrieved 2/21/2018, from REHABDATA database.