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Article

Individual differences in adult ego development: sources of influence in twins reared apart.

Journal of personality and social psychology - 1 Apr 1998

Newman D L, Tellegen A, Bouchard T J

Abstract excerpt

A behavior genetic analysis of the personality dimension of ego development, as assessed by the Washington University Sentence Completion Test, was carried out on a sample of 45 pairs of monozygotic twins and 28 pairs of same-sex dizygotic twins. The twins ranged in age from 16 to 70 years at the time of assessment, had been separated during infancy, and had been raised apart in adoptive homes before being...

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PMID: 9569654
DOI: 10.1037//0022-3514.74.4.985

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

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