NotesFAQContact Us
Collection
Advanced
Search Tips
Showing all 2 results Save | Export
Peer reviewed Peer reviewed
Direct linkDirect link
Hultman, Christina M.; Torrang, Anna; Tuvblad, Catherine; Cnattingius, Sven; Larsson, Jan-Olov; Lichtenstein, Paul – Journal of the American Academy of Child & Adolescent Psychiatry, 2007
Objective: To determine whether low birth weight increases the risk of attention-deficit/hyperactivity disorder (ADHD) in childhood and early adolescence. Method: In a population-based sample of 1,480 twin pairs born in the period 1985-1986 ascertained from the Swedish Twin Registry, birth weight was collected prospectively through the Medical…
Descriptors: Early Adolescents, Environmental Influences, Twins, Genetics
Fischbein, Siv – 1979
A summary and discussion of a series of studies considered the dilemma that equal educational treatment of all children in public schools appears likely to increase the spread of differences among them in educational achievement. Longitudinal studies of pairs of identical and of fraternal twins in Sweden from 10 to 18 years of age considered the…
Descriptors: Achievement Tests, Adolescents, Aptitude Tests, Body Height