Richard Lynn's work has been repeatedly condemned for using flawed methodology and deceptively collated data to support racism. It's past time to retract the studies.| STAT
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
Orlich & Gifford (2006) published an analysis that shows high correlation between parental income and SAT scores.| 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
The idea that schooling raises intelligence still prevails. The influential study review of Ceci (1991) concluded that schooling has a strong impact on IQ scores despite his final warning that obse…| Human Varieties