NDLI: Personality Traits in Sardinia: Testing Founder Population Effects on Trait Means and Variances

Content Provider	Springer Nature Link
Author	Costa, Paul T. Terraccia, Antonio Uda, Manuela Vacca, Loredana Mameli, Cinzia Pilia, Giuseppe Zonderman, Alan B. Lakatta, Edward Schlessinger, David McCrae, Robert R.
Copyright Year	2006
Abstract	Potential founder population effects on personality trait means and variances were examined in a large, genetically homogeneous sample (N = 5,669) from the Ogliastra, an isolated region within Sardinia, Italy. The Italian version of the Revised NEO Personality Inventory showed good psychometric properties: Internal consistency reliabilities ranged from 0.80 to 0.87; the factor structure replicated the American normative structure; and associations with education and gender replicated cross-cultural patterns. The hypothesis that mean trait levels in the Sardinian founder population would differ from mainland Italian values was not supported. Phenotypic variation in this founder population was within the range found in other cultures. However, the hypothesis of restricted phenotypic variation was supported for all five factors and 28 of the 30 facets when a Sardinian subsample matched on age, sex, and education was compared to a mainland Italian sample. The genetic homogeneity effect on the phenotypic expression of complex traits merits further exploration.
Starting Page	376
Ending Page	387
Page Count	12
File Format	PDF
ISSN	00018244
Journal	Behavior Genetics
Volume Number	37
Issue Number	2
e-ISSN	15733297
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2006-09-14
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Five-Factor Model of personality Genetic homogeneity Founder population Cross-cultural Complex trait QTL Evolutionary Biology Neurosciences Human Genetics
Content Type	Text
Resource Type	Article
Subject	Genetics Ecology, Evolution, Behavior and Systematics Genetics (clinical)

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