The repeated measures ANOVA showed a significant main effect of Group (HC, CHR, YSZ) for the evoked power GBR (Figure 1b, 2b). The Site and Group X Site interaction effects were not significant. As reported in Table 2, age-corrected evoked power GBR factor z-scores were reduced in the YSZ and CHR groups relative to the HC group (YSZ vs. HC: Cohen’s d=.69; p=0.004; CHR vs. HC: Cohen’s d=.50; p=0.011).