The effects of excluding students from PISA tests Post author:Emil O. W. Kirkegaard Post published:6. December 2016 Post category:Differential psychology/psychometrics / Education / Math/Statistics A new R Notebook. You Might Also Like African IQs using only age heaping data 17. August 2022 A more intuitive explanation of the correlation 2. April 2016 Can we make humans that are 1,000 SDs smarter than current humans? 14. August 2015