Reading over some sibling control studies, BIG TOUGH GUY mentioned this quite wrong study: Meier, S. M., Mors, O., & Parner, E. (2017). Familial confounding of the association between maternal…
Cooper, C. (2018). Psychological testing: theory and practice. Routledge. This is a pretty food good introduction to psychometrics (the science of psychological measurement). There is the now customary dislike for…
See 2019 post on introductions to psychology etc. for broader coverage Anon asks me today: What would be the best way to quickly self-teach enough statistics to be able to…
Someone emails me: Hello Mr. Kirkegaard, This is a question I emailed to Richard Lynn about data in regression analysis in his book Intelligence that did not make sense to…
Yep, it's another comment based on reading too much industrial and organizational psychology! The Schmidt and Hunter approach to meta-analysis, AKA validity generalization theory (VG theory) AKA psychometric meta-analysis (PMA)…
And now for something completely different. Well, not that different. But not the usual things. I've been working in human resources/education since February. It's quite enjoyable work. My job consists…
Most method people agree that most researchers are bad at statistics, naturally. A typical paper to show this is: Lyu, X. K., Xu, Y., Zhao, X. F., Zuo, X. N.,…
Pearl, J., & Mackenzie, D. (2018). The book of why: the new science of cause and effect. Basic Books. This is an interesting but annoying book. The basic pattern of…
A fellow emailed me asking for help on what to start reading to learn psychology and stats. The replication crisis means that most older psychology introductions should be viewed with…
There's a certain type of person that doesn't produce any empirical contribution to "Reducing the heredity-environment uncertainty". Instead, they contribute various theoretical arguments which they take to undermine the empirical…