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Lamb, Diane J.; Middeldorp, Christel M.; van Beijsterveldt, Catarina E. M.; Bartels, Meike; van der Aa, Niels; Polderman, Tinca J. C.; Boomsma, Dorret I. – Journal of the American Academy of Child & Adolescent Psychiatry, 2010
Objective: To explain the differential course of anxiety and depression in individuals from childhood to adulthood by examining age-related changes in the genetic and environmental etiology of anxious and depressive symptoms. Method: A sample of 1470, 1839, and 2023 Dutch twins aged 12, 14, and 16 years reported on symptoms of anxious depression…
Descriptors: Age Differences, Nature Nurture Controversy, Risk, Children