Fig. 1.

Discriminant function analyses of factor-based scores from the NIHTB-CB with DR versus NIHTB-CB without DR versus traditional tests. Three discriminant function analyses show the relative rates of accurate diagnostic group reclassification comparing the NIHTB-CB protocol with and without the RAVLT-DR to the traditional test protocol. The y-axis shows the percent of participants correctly reclassified according to their original consensus diagnosis, and the x-axis shows the three cognitive protocols by individual diagnostic group and by the overall sample. Abbreviations: CN, cognitively normal; naMCI, nonamnestic mild cognitive impairment; aMCI, amnestic mild cognitive impairment; AD, dementia due to Alzheimer's disease; NIHTB-CB, NIH Toolbox Cognition Battery; RAVLT-DR, Rey Auditory Verbal Learning delayed recall subtest; PCA, principal component analysis.