Genetic and environmental influence on language impairment in 4-year-old same-sex and opposite-sex twins - Viding, Essi; Spinath, Frank M.; Price, Thomas S.; Bishop, Dorothy V.M.; Dale, Philip S.; Plomin, Robert (Journal of child psychology and psychiatry, 2004)
Keywords: Behavioural genetics; Biological and medical sciences; Child clinical studies; Child psychology; Child, Preschool; Children; Co-twins; Environmental aspects; Environmental Influences; Etiology; Extremes; Female; Gender Differences; General factor; Genes; Genetic factors; Genetics; Heritability; Humans; language; Language and communication disorders; Language Aptitude; Language Development; Language disorders; Language Disorders - epidemiology; Language Disorders - genetics; Language impairment; Language Impairments; Language Pathology; Language Tests; Male; Medical sciences; Preschool Children; Psychology. Psychoanalysis. Psychiatry; Psychopathology. Psychiatry; Severity; Severity (of Disability); Sex Differences; Sex Factors; Siblings; Social Environment; Twins; Twins, Dizygotic - genetics; Twins, Monozygotic - genetics; United Kingdom - epidemiology; Human; Preschool age; Social environment; Behavioural genetics; Family study; Sex; Environmental factor; language; Genetic determinism; Language disorder; Twin; twins. Abbreviations: TEDS: Twins Early Development Study; MZ: monozygotic; DZ: dizygotic; Communication disorder; language impairment; Family environment; Heritability; Child