The British journal of psychiatry : the journal of mental science · 1998
Longitudinal study of interpersonal dependency in female twins.
СтатьяПоддержка исследования: вне правительства СШАПоддержка службы здравоохранения СШАTwin StudyНазвание и аннотация: Перевод в очереди
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O'Neill F A, Kendler K S
Аннотация
BACKGROUND: Interpersonal dependence is thought to be important in a number of physical and psychological disorders. There are several developmental theories that suggest environmental influences in childhood are important.
METHOD: A twin study methodology was used to look at the genetic and environmental influences on interpersonal dependence as measured by a sub-scale of the Interpersonal Dependency Inventory with a population-based sample of 2230 twins.
RESULTS: Psychometric analysis revealed that this was a stable measure and that there was a substantial degree of construct validity. Both univariate and longitudinal twin analysis suggested that there was a modest genetic influence and a large, specific environment influence on interpersonal dependency as measured by this scale. The longitudinal analysis revealed that the genetic influence was stable over the time-scale sampled and the environmental influence was moderately stable.
CONCLUSIONS: This finding is at odds with theories that suggest shared environment is important in the aetiology of interpersonal dependency.
METHOD: A twin study methodology was used to look at the genetic and environmental influences on interpersonal dependence as measured by a sub-scale of the Interpersonal Dependency Inventory with a population-based sample of 2230 twins.
RESULTS: Psychometric analysis revealed that this was a stable measure and that there was a substantial degree of construct validity. Both univariate and longitudinal twin analysis suggested that there was a modest genetic influence and a large, specific environment influence on interpersonal dependency as measured by this scale. The longitudinal analysis revealed that the genetic influence was stable over the time-scale sampled and the environmental influence was moderately stable.
CONCLUSIONS: This finding is at odds with theories that suggest shared environment is important in the aetiology of interpersonal dependency.