Interesting non-linear relationship between TV watching, age and reading comprehension

Some time ago, I stumbled upon this paper: Searls, D. T., Mead, N. A., & Ward, B. (1985). The relationship of students' reading skills to TV watching, leisure time reading,…

Continue ReadingInteresting non-linear relationship between TV watching, age and reading comprehension

Why do persons from higher mean IQ populations do better even after selection?

Abstract It has been found that workers who hail from higher socioeconomic classes have higher earnings even in the same profession. An environmental cause was offered as an explanation of…

Continue ReadingWhy do persons from higher mean IQ populations do better even after selection?

Harvard SAT and IQ: How much regression towards the mean?

http://pumpkinperson.com/2015/04/13/is-the-sat-an-iq-test/ Blog commenter Lion of the Judah-sphere has claimed that the SAT does not correlate as well with comprehensive IQ tests as said IQ tests correlate with one another. At…

Continue ReadingHarvard SAT and IQ: How much regression towards the mean?

The general brain factor, working memory, parental income and education, and racial admixture

UNFINISHED ANALYSIS. POSTED HERE TO ESTABLISH PRIORITY. MORE TO FOLLOW! Updated 2015-12-04 Remains to be done: Admixture analysis (doing) Proofreading and editing Deciding how to control for age and scanner…

Continue ReadingThe general brain factor, working memory, parental income and education, and racial admixture