The question of whether homosexuality is related to various bad things is independent of one’s stance towards homosexuals as citizens, their rights to marriage etc. which is fine by me. Given some recent tweets about the penile response of a large, clinical sample of men to various stimuli, there was some Twitter speculation that homosexuality […] Twitter: RaceRealist88 Since I am repeatedly asked by a bunch of differently looking people to comment on that particular blog. I don’t know the guy, but he’s been quite active in recent times. The blog is kinda odd in that it prominently features race realist stuff, a bunch of prominent race realist academics — […]

Dahlke, J. A., & Sackett, P. R. (2017). The Relationship Between Cognitive-ability Saturation and Subgroup Mean Differences Across Predictors of Job Performance. Journal of Applied Psychology. Abstract The authors quantify the conventional wisdom that predictors’ correlations with cognitive ability are positively related to subgroup mean differences. Using meta-analytic and large-N data from diverse predictors, they […]

Skoyles, J. R. (1999). Human evolution expanded brains to increase expertise capacity, not IQ. Psycoloquy, 10(002). Chicago Skoyles is arguing a rather implausible claim: Why do modern humans have larger brains than earlier people such as Homo erectus? As large brains cause problems in childbirth, infancy and locomotion, the advantage they offer must be substantial. […]

While I am re-writing our PING study to become a substantial target article, John is sending it to various journals in the mean time to poke about their editorial biases. Here’s a recent reply, which was thankfully quite up front about the bias: From: Frontiers <> Sent: Monday, September 25, 2017 5:05 PM To: […]

Using the crude measures of literacy and numeracy discussed in a previous post, it is possible to quantify the cognitive ability gap for US Black-White in the 1800s. The data come from: A’Hearn, B., Baten, J., & Crayen, D. (2009). Quantifying quantitative literacy: Age heaping and the history of human capital. The Journal of Economic […]

These are the Google Translated versions of the original French. We are trying to obtain regional data for Belgian communes to use for our study, as well as nationality or group level data for general interest. You can see the preliminary analyses here. Needless to say, it is hard to find out what is actually […]

How easy is it to get provocative findings using mainstream methods published? Well, it depends on how provocative. Here’s a second round of generally nonsensical reviews for our PING paper (which you can read here and judge yourself: a good chunk of readers of this blog are themselves researchers and don’t need others to review […]

Since this one is well-covered already, I don’t need to add much. See e.g.: Nintil: Why so few women in CS: the Google memo is fundamentally right Slatestarcodex: Contra Grant On Exaggerated Differences Lee Jussim, David P Schmitt, Geoffrey Miller, Debra W Soh’s writings Math ability and sex Because lots of people keep claiming there […]