Birth order, sex of subject and sex of sibling as factors in extraversion and neuroticism in two-child families.
D000293:Adolescent; D000328:Adult; D001722:Birth Order; D005120:Extraversion, Psychological; D005191:Family Characteristics; D005260:Female; D006801:Humans; D008297:Male; D009497:Neurotic Disorders / Q000209:etiology*; D010555:Personality Inventory; D012737:Sex Factors; D012801:Sibling Relations