1. Applied multiple regression/correlation analysis for the behavioral sciences;Cohen,1983
2. Score change when retaking the SAT I: Reasoning test;College Board,1998
3. College Board (n.d.). Test characteristics of the SAT: Reliability, difficulty levels, completion rates. Retrieved March 7, 2005 from http://www.collegeboard.com/prod_downloads/about/news_info/cbsenior/yr2003/pdf/table_5.pdf
4. IQ is related to the worst performance rule in a memory task involving children;Coyle;Intelligence,2001
5. IQ, the worst performance rule, and Spearman's law: A reanalysis and extension;Coyle;Intelligence,2003