In a 11-year old post I showed that the use of p-value misleads researchers about the conclusion in different ways: model selection, test bias, disregard for the power of the statistical test, disregard for the improved power in meta-analysis.| menghu.substack.com
In this book, Richard D. Fuerle (2008) first rigorously expounded upon the evolutionary principles and then provided evidence that Africans lack many essential modern traits, and finally that the Out of Africa (OoA) theory is flawed| menghu.substack.com
Academic papers’ abstracts are sometimes manipulated to display what is seemingly a good result.| Meng Hu on HBD and Austrian Economics
For a long time, college tuition increased at a faster pace than inflation, and while the causes are certainly multifactorial, one seems to stick out like a sore thumb: student aid.| Meng Hu on HBD and Austrian Economics
The Classical Twin Design (CTD) has always been criticized for being oversimplistic, and consistently overestimating heritability estimates due to not accounting for GxE, GxG, rGE and equal environmental effects.| Meng Hu on HBD and Austrian Economics
The economic discourse has often compared the evolution of economic outcomes of the interventionist Singapore and the market capitalist Hong Kong since the 2nd half of the 20th century.| Meng Hu on HBD and Austrian Economics
Sackett et al. (2022) recently questioned prior meta-analytic conclusions about the high IQ validity since the studies by Schmidt & Hunter decades ago. The crux of the issue is complex, but while the debate regarding range restriction correction is not (at least not completely) resolved yet, one thing is certain. The validity depends on the measure of job performance that is used in the meta-analysis. It is unlikely that the importance of IQ has declined in recent years.| Meng Hu on HBD and Austrian Economics
Borghans et al. (2016) analyze 4 datasets with diverse measures of IQ and, shockingly, concluded that the impact of IQ on social outcomes is weak| Meng Hu on HBD and Austrian Economics
A sound banking system is a necessary component of economic prosperity. The mainstream view on banking is that a central bank must prevail.| Meng Hu on HBD and Austrian Economics
In this analysis of the Project Talent data, the g factor model as represented by the Spearman’s Hypothesis (SH) was confirmed for the black-white cognitive difference but not for the sex difference.| Meng Hu on HBD and Austrian Economics
Chuck recently published the IQ estimates for almost 30 ethnic groups/subgroups in the ABCD of the 10-year old US children.| Meng Hu on HBD and Austrian Economics
When observable measures such as socio-economic and health factors are adjusted, the IQ gap is substantially reduced yet a non-trivial difference remains.| Meng Hu on HBD and Austrian Economics
In The Pattern Seekers: How Autism Drives Human Invention (2020), Baron-Cohen proposes the Systemizing Mechanism as an explanation for human progress through invention, from the first tools to the digital revolution.| menghu.substack.com
A recent article by Samorodnitsky and co-authored by two renowned censorship champions, namely, Kevin Bird and Rebecca Sear, requests that all published papers that have ever used Lynn & Vanhanen (2006) national IQs (or subsequent, revised version, up to Becker & Lynn,| menghu.substack.com
Thomas Sowell’s book, Wealth, Poverty and Politics, provides a thorough explanation as to why nations and groups of peoples developed at different rates, how and why they rise or fall as a group or empire. There are only a few sections which I do not find convincing, such as his arguments on group differences in IQ and his complete rejection of the genetic hypothesis.| menghu.substack.com
There are convenient ways researchers can collect IQ scores and correlate the observed scores with measures of self-reported health, socio-economic attainment, personality or political views. In platforms such as Prolific or MTurk, participants make money in their spare time by completing tasks. Designing a test that displays both a high loading on the general factor of intelligence, while avoiding measurement bias and bad quality data from online participants, is quite a challenging task.| menghu.substack.com
The OLS regression is a widely applied technique, and many variants of the classical regression exist.| menghu.substack.com
Probably the most rehearsed explanation of the gender pay gap is discrimination.| menghu.substack.com
Despite the US Supreme Court recently overturning affirmative action (AA), many scholars believe that AA bans in higher education hurt minorities’ opportunities because affirmative action actually delivered on its promises. Although the findings lack consistency, the impact of AA on the outcomes of under-represented minorities (URM) is generally either ambiguous or slightly negative. The bans exert a less negative effect on more competitive fields such as STEM. The picture is even worse whe...| menghu.substack.com
Orlich & Gifford (2006) published an analysis that shows high correlation between parental income and SAT scores.| menghu.substack.com
While it is well known that free trade promotes prosperity for all, as Krugman explained in his book, a less known theory and yet by far the strongest case for protectionism is the infant industry argument. That is, a new industry with high potential but lacks economies of scales must require temporary protection from international competitors until they become mature as well, able to compete with already matured industries. This article critically examines the theory and reviews the empirica...| menghu.substack.com
After the global financial crisis in 2008-2009, the global debt increased substantially and was mainly driven by governmental and nonfinancial corporate debt.| menghu.substack.com
As reviewed in my previous article, the majority of studies on measurement bias, either on the item- or subtest-level, reached an agreement about the fairness of IQ test.| menghu.substack.com
The most important studies on internal test bias with respect to racial groups in the item-level, subtest-level and construct-level are reviewed. The proposed causes will be discussed. Generally, the most commonly used IQ tests aren’t biased or only minimally biased as to be of no practical value.| menghu.substack.com