What Leaves Behind: The Roles of IQ and Self-Control in Predicting Standardized Achievement Test Scores and Report Card Grades
Journal of Educational Psychology (2012) - Comment
pubmed: 24072936  doi: 10.1037/a0026280  issn: 0022-0663  issn: 1939-2176 

Angela L. Duckworth, Patrick D. Quinn, Eli Tsukayama