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Re:What do we really know about the effectiveness of digital... by matheusmoreira on Thursday November 07, 2019 @04:08AM (#21471616)
> Take an audience of X people. Divide them in two. Show ads to your test group, don't show to control. Watch your business grow and gauge the lift between the two audiences.

So advertising industries use people as guinea pigs to study the "real effect of their ad dollars". No ethics committee, no informed consent, nothing.

Yet another reason to block all ads.

Re:What do we really know about the effectiveness of digital... by jefftk on Thursday November 07, 2019 @07:59AM (#21472761)
If you can ethically do something (show ads) or not do something (not show ads) it's equally ethical to run an experiment where you do the thing some of the time and measure the effect.

Internet companies run A/B tests all the time, and it's not controversial.

Re:What do we really know about the effectiveness of digital... by ryan93 on Thursday November 07, 2019 @07:49AM (#21472698)
Hyperbolic.