Dear Users,<br><br>I wonder if anyone could provide any suggestion regarding an issue I encountered. According to the article (Maris, 2007), it seems that cluster-based permutation test is calculated under the permutation distribution of the maximum cluster-level statistics. In my tome-frequency data, there are two big clusters. Only one cluster reaches statistical significance; however, if I exclude this significant cluster and then rerun the test, the other cluster also reaches statistical significance. It seems to suggest that the sensitivity is lost for the second cluster. I wondered if there is any approach to resolve this issue. Many thanks!<br>
<br>Best regards,<br><br>Shen-Mou Hsu<br>