No, you most probably don’t know what p-values and confidence intervals mean (but don’t feel bad about it, you can just do Bayesian instead)

Tales of Design & User Experience (ToDUX) #16 ⁂ Dear readers & friends, Studies have shown over and over that even professional researchers (including statisticians!) can’t correctly interpret a confidence interval or a p-value most of the time. Then, how could you expect the average Joe to be better at that? Frequentist statistics (the kind that gives you those… Continue reading No, you most probably don’t know what p-values and confidence intervals mean (but don’t feel bad about it, you can just do Bayesian instead)

“We Need to Get Rid of Significance in A/B Testing, Seriously!” Published in ACM interactions

The way A/B testing is done in many—if not most—companies today, p-values and significance are pretty much meaningless. Still, decision models often only allow treatments to be implemented if they achieved a "significant uplift". One better alternative is to employ a Bayesian approach which allows to report probabilities for minimum uplifts and to calculate ROI on a case-by-case basis.

Vamos a Barcelona 🏖️

Tales of Design & User Experience (ToDUX) #2 ⁂ Dear Subscribers, this is the first newsletter sent from my new home, which is indeed Barcelona 🏖️, and I wanna use it to update you on a couple of things. We still need to get rid of significance in A/B testing First of all, my piece… Continue reading Vamos a Barcelona 🏖️

We Need to Get Rid of Significance in A/B Testing

Tales of Design & User Experience (ToDUX) #1 ⁂ Dear Subscribers, Welcome to the first issue of ToDUX (= Tales of Design & User Experience; I’ve skipped the “& Other Stuff” for the acronym). But first things first—thank you all so much for joining my mailing list. I feel very honored. 🙂 As promised, I… Continue reading We Need to Get Rid of Significance in A/B Testing