Today one of my channels (site) had 88point something CTR. There was 8 clicks out of nine impressions. Is it something I should write to google?
I have over 10 websites with AdSense on them, and that happens all the time on different sites. I think it is just someone clicking an ad, not liking where it took him and clicking back, then clicking another ad, etc. I don't think there is a problem here.
Channels are basically a list of different pages you have your ads on to identify where the money and clicks are coming form.