title: The development of product parity sensitivity in children with mathematics learning disability and in typical achievers.
abstract: Parity helps us determine whether an arithmetic equation is true or false. The current research examines the development of sensitivity to parity cues in multiplication in typically achieving (TA) children (grades 2, 3, 4 and 6) and in children with mathematics learning disabilities (MLD, grades 6 and 8), via a verification task. In TA children the onset of parity sensitivity was observed at the beginning of 3rd grade, whereas in children with MLD it was documented only in 8th grade. These results suggest that children with MLD develop parity aspects of number sense, though later than TA children. To check the plausibility of equations, children used mainly the multiplication parity rule rather than familiarity with even products. Similar to observations in adults, parity sensitivity was largest for problems with two even operands, moderate for problems with one even and one odd operand, and smallest for problems with two odd operands.
authors.affiliation: Department of Psychology, Ben-Gurion University of the Negev, Beer-Sheva, Israel. Avital_r@macam.ac.il
authors.forename: Avital
authors.initials: A
authors.lastname: Rotem
authors.forename: Avishai
authors.initials: A
authors.lastname: Henik
mesh_terms: D000124:Achievement; D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003463:Cues; D005260:Female; D006801:Humans; D007859:Learning Disabilities / Q000503:physiopathology* / Q000534:rehabilitation; D008297:Male; D008433:Mathematics / Q000193:education*; D008606:Mental Processes / Q000502:physiology*; D011340:Problem Solving / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology; D055815:Young Adult