The statistical analysis was conducted by using SPSS 19.0. We used Kruskal–Wallis nonparametric statistics to compare the age, handedness, and IQ of the two groups. Then, between‐groups differences within coherence in 16 electrode pairs and power value of four frequency bands were obtained using two‐sample two‐tailed t tests. The present study explored whether altered coherence was associated with severity of symptoms in ASD. Pearson correlation analysis was utilized to determine the relationship between the atypical coherence values and the ADI‐R, ADOS, SRS, and AQ scores in ASD group.
