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Comparison of baseline-referenced versus norm-referenced analytical approaches for in-theatre assessment of mild traumatic brain injury neurocognitive impairment.

https://arctichealth.org/en/permalink/ahliterature270316
Source
Brain Inj. 2016;30(3):280-6
Publication Type
Article
Date
2016
Author
F Jay Haran
Michael N Dretsch
Jill C Slaboda
Dagny E Johnson
Octavian R Adam
Jack W Tsao
Source
Brain Inj. 2016;30(3):280-6
Date
2016
Language
English
Publication Type
Article
Abstract
To examine differences between the baseline-referenced and norm-referenced approaches for determining decrements in Automated Neuropsychological Assessment Metrics Version 4 TBI-MIL (ANAM) performance following mild traumatic brain injury (mTBI).
ANAM data were reviewed for 616 US Service members, with 528 of this sample having experienced an mTBI and 88 were controls.
Post-injury change scores were calculated for each sub-test: (1) normative change score = in-theater score - normative mean and (2) baseline change score = in-theater score - pre-deployment baseline. Reliable change cut-scores were applied to the change and the resulting frequency distributions were compared using McNemar tests. Receiver operator curves (ROC) using both samples (i.e. mTBI and control) were calculated for the change scores for each approach to determine the discriminate ability of the ANAM.
There were no statistical differences, p 0.05.
Overall, the findings suggest there is no clear advantage of using the baseline-referenced approach over norm-referenced approach.
PubMed ID
26909463 View in PubMed
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