Chunk #37 — Results — Further Examination of the Relationship between TF-PCA and Time-Domain Measures — Mean ERP amplitude within the time range defined by TF-PC3
A second set of analyses was performed to demonstrate the optimization of information gain gotten from the TF-PCA method. To this end, the discriminative ability of the mean ERP amplitude within this time range (spanned by TF-PC3) was compared to that of the mean energy of PC3 within the same time range, thus comparing analogous measures in the time and TF domains. Again, across externalizing groups, PC3 accounted for a significant amount of variance in group membership beyond that accounted for by the mean ERP measure (just short of significance for the ADHD and DAD groups, p=.059 & .086, respectively; see Table 4).
