Strong publication bias in early intervention studies
I apparently did not post this one on the blog, only on Twitter. Or at least, I can't find it. Here's the analysis: http://rpubs.com/EmilOWK/pub_bias_early_intervention Figures
Systematic approaches to learning work better than haphazard ones, probably
May be another case of a zombie idea: one that keeps being refuted only to come back under another term, and then await refutation for 10-20 years. It is also…
Teaching kids philosophy to boost their abilities in other areas?
Disclaimer: I only took a brief look. Doing the reading and writing this post took maybe 30 minutes. I may have missed something, but unlikely it would have a major…
Talks from ISIR 2016 Saint Petersburg
Some of the talks from ISIR 2016 in Saint Petersburg are now online. In particular, I enjoyed Detterman's talk, but of course I think he is too pessimistic about reproductive…
Comments on Marty Nemko’s “12 Predictions for 2050”
A reader asked me to comment on the predictions/musings by Marty Nemko at his blog. I had never heard of him before, but he's some kind of coach, radio host…
Occupations, cognitive ability and stereotypes
It seems that no one has integrated this literature yet. I will take a quick stab at it here. It could be expanded into a proper paper later in case…
Betas and residualized variables / does non-g ability predict GPA?
https://twitter.com/KirkegaardEmil/status/641272758257717248 https://twitter.com/pnin1957/status/641284556818096128 Let's test that. Since we don't have the original data, we can't use that. We can however use open datasets. I like to use Wicherts' dataset. So let's…
Meisenberg’s new book chapter on intelligence, economics and other stuff
G.M. IQ & Economic growth I noted down some comments while reading it. --- In Table 1, Dominican birth cohort is reversed. “0.70 and 0.80 in world-wide country samples.…
Paper out (some time ago): Are Headstart gains on the g factor?: A meta-analysis
Jan te Nijenhuis, Birthe Jongeneel-Grimen and Emil O. W. Kirkegaard. Are Headstart gains on the g factor?: A meta-analysis. Intelligence. Volume 46, September–October 2014, Pages 209–215 If all goes…