Banner Ads Considered Harmful (Here) - Gwern.net

13 bookmarks. First posted by FradSer november 2017.

RT @randfish: tested Google AdSense vs. no ads for 9 months, found with 95% confidence that the ads lower…

from twitter
november 2017 by pronoiac

“9 months of daily A/B-testing of Google AdSense banner ads on gwern.net indicates banner ads decrease total traffic substantially, possibly due to spillover effects in reader engagement and resharing.”

advertising
november 2017 by amitp

9 months of daily A/B-testing of Google AdSense banner ads on gwern.net indicates banner ads decrease total traffic substantially, possibly due to spillover effects in reader engagement and resharing.

Very good statistical analysis of the effect of banner ads on traffic on a blog. Found that banner ads decreased traffic ~10%.

statistics
ads
november 2017 by alexbecker

> Power analysis of historical gwern.net traffic data demonstrates that the high autocorrelation yields very low statistical power with standard tests & regressions but acceptable power with ARIMA models. I design a long-term time-series approach in which a A/B-test running January-October 2017 in 2-day blocks of ads/no-ads uses client-local JS to determine whether to load & display ads. The final results yields a strong estimate of 14% traffic loss if all traffic were exposed to ads (95% credible interval: -13-16%) and an expected traffic loss of ~9.7%, far exceeding the decision threshold for disabling ads and rendering profitless further experimentation. Thus, banner ads on gwern.net appear to be quite harmful and AdSense has been removed.

gwern
statistics
november 2017 by porejide

9 months of daily A/B-testing of Google AdSense banner ads on gwern.net indicates banner ads decrease total traffic substantially, possibly due to spillover effects.

A/B-testing
november 2017 by FradSer