Lars P. Syll

En grupp ‘högpresterande’ elever — Ada, Beda, och Cissi — söker in till en friskola. Ada och Beda blir antagna och börjar på den. Cissi blir också antagen, men väljer att gå på en kommunal skola. En annan grupp ‘lågpresterande’ elever — bestående av Dora och Eva — söker och blir både antagna till en friskola, men Eva väljer att gå på en kommunal skola. Om vi nu tittar på hur de presterar på ett kunskapsprov får vi följande resulatat: Ada — 22, Beda — 20, Cissi — 22, Dora — 12,...

Tribute to Björn Skifs .[embedded content]

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Economy Studies: A Guide to Rethinking Economics Education .[embedded content]

If we make a Pearson’s correlation analysis on the variables in the scatterplot above — the corona vaccination rate and the (7 day) case rate per 100 000 people (data from last week) — we get an r = -0,15. And still in the youtube video below Sahra Wagenknecht says there is “keine Zusammenhang” between vaccination rate and case rate for the countries in the plot. Maybe someone ought to teach high-profile anti-vaxxers some basic statistics … .[embedded content]...

The fatal flaw of mathematics .[embedded content] Gödel’s incompleteness theorems raise important questions about the foundations of mathematics. The most important concerns the question of how to select the specific systems of axioms that mathematics are supposed to be founded on. Gödel’s theorems irrevocably show that no matter what system is chosen, there will always have to be other axioms to prove previously unproved truths. This, of course, ought to...

.[embedded content] A twenty minutes watch — heart breaking and with an important message.

David Freedman — the conscience of statistics On the issue of the various shortcomings of statistics, regression analysis, and econometrics, no one sums it up better than David Freedman in his Statistical Models and Causal Inference: In my view, regression models are not a particularly good way of doing empirical work in the social sciences today, because the technique depends on knowledge that we do not have. Investigators who use the technique are not...

Living on my own .[embedded content]

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