An EEG-Based Neuromarketing Approach for Analyzing the Preference of an Electric Car

Table 3

Significance value (F (p)) and effect size (η2) for ANCOVA test, investigating the age effect on groups’ differentiation.

Variable	Group	Age	Group □age	Group □age η2
Frontal alpha mean power at stimulation stages	1.19 (0.06)	2.15 (0.1)	3.18 (0.04)	0.006
Central-parietal and central-frontal coherence	3.65 (0.7)	4.58 (0.3)	0.67 (0.9)	0.080
Frontal alpha DFA at decision-making stage	1.73 (0.02)	1.04 (0.08)	1.59 (0.7)	0.041

Significance at p < 0.05.