Table 2. Average correlation by frequency band for the test set group.

Gamma is not analyzed individually as only part of the band is present in the signal.

Average correlation	Delta (1–3.5 Hz)	Theta (3.5–7.5 Hz)	Alpha (7.5–12.5 Hz)	Beta (12.5–30 Hz)	Full band (1–38 Hz)
Train set	0.51	0.62	0.68	0.54	0.57
Test set	0.62	0.73	0.74	0.64	0.64
Full data set	0.55	0.66	0.70	0.57	0.60