a weak trendp < 0.08
Patient ReT z -scores ( Figure 4 ) showed minimal slowing in the TBI group as a whole [mean ReT z -score = 0.21, F (1,213) = 1.00, NS], though the ReT z -scores of the sTBI patient subgroup (mean z -score = 0.89) showed a weak trend toward increased ReT z -scores [ F (1,189) = 3.16, p < 0.08].