Abstract
Base rates of low ANAM4 TBI-MIL scores were calculated in a convenience sample of 733 healthy male active duty soldiers using available military reference values for the following cutoffs: 2nd percentile (2 SDs), 5th percentile, <10th percentile, and <16th percentile (1 SD). Rates of low scores were also calculated in 56 active duty male soldiers who sustained an mTBI an average of 23 days (SD = 36.1) prior. 22.0% of the healthy sample and 51.8% of the mTBI sample had two or more scores below 1 SD (i.e., 16th percentile). 18.8% of the healthy sample and 44.6% of the mTBI sample had one or more scores 5th percentile. Rates of low scores in the healthy sample were influenced by cutoffs and race/ethnicity. Importantly, some healthy soldiers obtain at least one low score on ANAM4. These base rate analyses can improve the methodology for interpreting ANAM4 performance in clinical practice and research.
Original language | English |
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Pages (from-to) | 26-38 |
Number of pages | 13 |
Journal | Archives of Clinical Neuropsychology |
Volume | 30 |
Issue number | 1 |
DOIs | |
State | Published - 1 Feb 2015 |
Keywords
- Base rates
- Cognitive testing
- Low scores
- Mild traumatic brain injury
- Military