title: Introduction: mathematics ability, performance, and achievement.
authors.affiliation: Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Balimore, MD, USA. mazzocco@jhu.edu
authors.forename: Michele M M
authors.initials: MM
authors.lastname: Mazzocco
mesh_terms: D000124:Achievement; D000293:Adolescent; D001076:Aptitude; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007859:Learning Disabilities / Q000175:diagnosis*; D008137:Longitudinal Studies; D008433:Mathematics