a reliable trendp = 0.083
P3 latency data also showed a reliable trend in task x group interaction ( χ 2 (1) = 3.01, p = 0.083) and post hoc comparisons revealed P3 latency significantly differed between tasks in the NC group, indicating OA > SC P3 latency in the NC group ( mean difference = 73.1 ms, SE = 24.5, p = 0.011) which showed a large and statistically reliable effect size (Hedges’ g = 1.60, 95% CI [0.12, 1.81]), with no task differences in P3 latencies observed in the PPA group ( p = 0.525).