Cross-validating the Human Accomplishment dataset with Wikipedia
(Partial Rnotebook) Last year I convinced Charles Murray to share some of his data underlying his great book Human Accomplishment. He put it on OSF, where it remains available. So…
A sex difference that won’t go away and measurement invariance
Whitley, E., Deary, I. J., Ritchie, S. J., Batty, G. D., Kumari, M., & Benzeval, M. (2016). Variations in cognitive abilities across the life course: Cross-sectional evidence from Understanding Society:…
Immigrant performance in the Netherlands: brief look
I have only been able to find one fairly detailed dataset of immigrant performance in the Netherlands (covered in this study). It found the usual things, but with much uncertainty…
PSA: bugfix for the scoreIrt function in psych package, you should re-do your analyses!
I was working on a study and while doing so, I updated all my R packages. To my surprise, this changed the results in my analysis to a degree that…
Cross-national data for social desirability bias in polling
This is just a brief post summarizing some stuff because I don't have time to do more right now. Noah Carl asks me: Can you point me to some evidence…
Review: Climatology Versus Pseudoscience: Exposing the Failed Predictions of Global Warming Skeptics
This book is written by one of the persons behind Skeptical Science, a website debunking pseudoscience in the area of climatology and global warning, very much like Talk Origins debunks…
Installing the latest version of R on Ubuntu/Mint
I wrote about this before, but since this is a frequent problem and my last post wasn't brief, here's a shorter version. The primary way to install software in Linux…
Amphetamine vs. methylphenidate for ADHD
Brief summary of thinking: The war on drugs makes it difficult or impossible to study drugs on the ban list. A drug's presence on the ban list is primary due…
Crowdsourcing a dataset: Multiparty democracies, election thresholds and running for parliament
I've decided to re-do my old and not too well done 2013 study. It goes like this, for multiparty democracies: Countries differ in the number of houses: 1 vs. 2.…
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