Search "user:NDpatzer"

@sandals said in #38: > @NDpatzer, you could do a regression of Elo with respect to ACT scores, for example. (They did do that, as you wrote in your post, except it seems like they regressed on the fa…

@sandals said in #35: > @NDpatzer , you say there are ways to check for robustness and make the parameter choices in a principled way. Maybe, but if so, psychometricians don't do it. I just check the …

@tackyshrimp said in #33: > Do you happen to know if the data they had was made public? I recently took an IRT class and am curious if I could do some IRT-specific things with the data. > > As for the…

@sandals said in #30: > Factor analysis is mostly fake. In this particular case, your 4 factors depend heavily on (a) the arbitrary choice of deciding to fit 4 factors (rather than 3 or 5), and (b) th…

@olokololokooko said in #23: > This article is as much scientific as my grandma's Facebook status updates. Hm - this depends heavily on what your Grandma posts to facebook, so I don't know how to inte…

@andreagobbez said in #22: > Well, that's interesting but maybe not so accesible to everyone. My apologies if I missed the mark a little in making it understandable. I'd be interested to hear if there…

@FrugoFruit90 said in #24: > Great stuff, one comment I have is that funny how we started from "Elo is bad in terms of psychometric properties, let's instead think of a different measure"... and then …

@Graque said in #20: > I didn't read the papers, so sorry if this is an elementary question, but it looks like the Amsterdam Chess Test was composed intuitively at first (i.e. the authors just threw i…

@tackyshrimp said in #17: > I'm a doctoral psychology student who's done a bit of bifactor modeling with the p-factor. Are you thinking of maybe doing some model comparisons using the ACT data? Compar…

@chesstosterone said in #5: > very well written, a pleasure to read Thank you for reading!