marginal significanceP = 0.0004
Although significant and marginal significance intergroup differences in P300 amplitude were identified [PBD versus SCZ: t (300) = 3.42, P = 0.0004; PBD versus SAD: t (252) = 1.79, P = 0.03; SCZ versus SAD: t (244) = −1.24, P = 0.11; fig.