Table 3.

Percent of the variance in the PASAT outcome explained by a random intercept only model, a model without functional effects (labeled the “Non-functional Model”), two models with single functional predictors (labeled “Single: MD” and “Single: PD” for the models using the mean diffusivity and parallel diffusivity tract profiles, respectively), and a model with multiple functional predictors (labeled “Multiple”).

	Random Int. Only	Non-functional Model	Single: MD	Single: PD	Multiple
PVE	81.2 %	83.8%	88.6%	88.7	88.8%