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A Longitudinal Study of Mathematical Competencies in Children with Specific Mathematics Difficulties versus Children with Comorbid Mathematics and Reading Difficulties.
Peer reviewed Peer reviewed
Jordan, Nancy C.; Hanich, Laurie B.; Kaplan, David – Child Development, 2003
Examined children's mathematical competencies between ages 7 and 9. Found no differences in developmental rate between children with math difficulties only (MD), math and reading difficulties (MD-RD), reading difficulties only (RD), and normal math/reading achievement (NA). Found that at end of Grade 3, MD group performed better than MD-RD group…
Descriptors: Child Development, Children, Comparative Analysis, Competence
The Structure of Achievement and Behavior across Middle Childhood.
Peer reviewed Peer reviewed
Kowaleski-Jones, Lori; Duncan, Greg J. – Child Development, 1999
Used data from National Longitudinal Survey of Youth to model developmental trajectories across middle childhood. Found that individual trajectories were extremely diverse in level and sometimes in slope. Compared to girls, boys had heterogeneous slopes for math and behavior problems. Compared to boys, girls showed a significantly higher degree of…
Descriptors: Academic Achievement, Behavior Problems, Child Behavior, Elementary Education