Alexander Etz

Bayes is beautiful. Statistician and psychologist. Co-host of @thebayesfactor podcast: Prof of Instruction at UT Austin.

[Alexander Etz @AlxEtz]

@stephenjwild "Overthrowing the Tyranny of Null Hypotheses Hidden in Causal Diagrams" by Sander Greenland

[Alexander Etz @AlxEtz]

@peder_isager It is a very different marginal landscape. In the first, p(C), A, and B are marginally dependent. In the second they are marginally independent; It’s as if they have all been experimentally manipulated. Your question becomes, essentially, “why do colliders block paths”

[Alexander Etz @AlxEtz]

@AdanBecerraPhD @SolomonKurz @stephenjwild For example, Figure 2c shows a confounder pointing to the interaction effect only, but not to G or E. So in that case how would one determine rules for when they can identify the effect of E on D?

[Alexander Etz @AlxEtz]

@SolomonKurz @AdanBecerraPhD @stephenjwild DAGs are non-parametric. The just represent which variables enter into functions determining other variables. The nature of those functions (e.g. interactions, linearity, etc) are not represented.

[PsyArXiv bot v2 @PsyArXiv_bot_v2]

The HDI ROPE decision rule is logically incoherent but we can fix it https://t.co/w2MGF2N5iV

[Alexander Etz @AlxEtz]

@just_cameron @shoshievass @yizhoujin This is similar https://t.co/4SZOhGg0X8

[Alexander Etz @AlxEtz]

@sTeamTraen

[Alexander Etz @AlxEtz]

@BA_Schuetze @dingding_peng

[Alexander Etz @AlxEtz]

@sTeamTraen It is similar in form to a chi-square https://t.co/3vToMqgbl1

[Alexander Etz @AlxEtz]

@sTeamTraen I’d imagine minor differences could be due to using slightly different assumptions in converting things, eg equal vs unequal variances etc

[Alexander Etz @AlxEtz]

@sTeamTraen Can't speak to how they would have calculated it. But see e.g. the blurb in the effectsize package below. Easy enough to do by hand, in any case.

[Alexander Etz @AlxEtz]

@FredOswald @sTeamTraen See https://t.co/jdtZVe2eyj

If the method used treats the test statistic like a pivot, then this will happen.

[Alexander Etz @AlxEtz]

@sTeamTraen If it is constructed from the non-central t distribution, which is in general skewed, then it can be asymmetrical.

[Alexander Etz @AlxEtz]

@AshleyJ_Thomas Not sure if there is a specific option. But in general you'd want to be careful testing everything possible. Everything may not be equally interpretable.

[Maarten van Smeden @MaartenvSmeden]

Every statistician will come to a point in their career where they feel like they have no choice but to get a tattoo with "what is your research question?" on their forearm

[Alexander Etz @AlxEtz]

@Notawful Potentially interesting, but too bad there are no figures showing the raw data or somewhere the raw data is shared (that I could see)

[Alexander Etz @AlxEtz]

@CostelloWilliam I did a lot, but many were just requests to review the stats. I'd recommend limiting yourself to ~3 per year.

[Alexander Etz @AlxEtz]

Teaching evaluations are a funny thing.

"Alexander was not a professor, he just regurgitated info on slides."

I don't even teach from slides in that course🤷‍♂️