{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T17:21:51Z","timestamp":1780507311301,"version":"3.54.1"},"reference-count":23,"publisher":"Royal College of Psychiatrists","issue":"2","license":[{"start":{"date-parts":[[2018,1,2]],"date-time":"2018-01-02T00:00:00Z","timestamp":1514851200000},"content-version":"unspecified","delay-in-days":7275,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Br J Psychiatry"],"published-print":{"date-parts":[[1998,2]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>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.<\/jats:p><\/jats:sec><jats:sec><jats:title>Method<\/jats:title><jats:p>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.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>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.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>This finding is at odds with theories that suggest shared environment is important in the aetiology of interpersonal dependency.<\/jats:p><\/jats:sec>","DOI":"10.1192\/bjp.172.2.154","type":"journal-article","created":{"date-parts":[[2008,10,15]],"date-time":"2008-10-15T05:40:02Z","timestamp":1224049202000},"page":"154-158","source":"Crossref","is-referenced-by-count":17,"title":["Longitudinal study of interpersonal dependency in female twins"],"prefix":"10.1192","volume":"172","author":[{"given":"F. 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