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2004

Behaviour Genetics

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Full-Text Articles in Medicine and Health Sciences

A Behavior Genetic Investigation Of The Relationship Between Leadership And Personality, Andrew Johnson, Philip Vernon, Julie Harris, Kerry Jang Jan 2004

A Behavior Genetic Investigation Of The Relationship Between Leadership And Personality, Andrew Johnson, Philip Vernon, Julie Harris, Kerry Jang

Andrew M. Johnson

Phenotypic research on leadership style has long considered the importance of individual differences in personality when identifying the behaviors associated with good leaders. Although leadership and many personality traits have been separately shown to be heritable, these constructs have not been examined with genetically informative data to identify common sources of heritability in the two domains. A logical extension to current research, therefore, is to examine the extent to which factors of personality are predictive of leadership dimensions and the extent to which unique genetic contributions to the relationship between personality and leadership style may be identified. Adult twin pairs …


The Genetic Basis Of Substance Abuse: Mediating Effects Of Sensation Seeking, Andrew Johnson, Philip Vernon Dec 2003

The Genetic Basis Of Substance Abuse: Mediating Effects Of Sensation Seeking, Andrew Johnson, Philip Vernon

Andrew M. Johnson

Most modern theories of personality are structured hierarchically, with broad higher-order dimensions predicting narrower trait-level variables. This approach is necessarily reductionist, proposing to summarize the majority of trait-specific variability with a smaller number of larger dimensions. Not surprisingly, therefore, significant research has been directed to determining what might be considered to be the most basic dimensions of personality—both with regards to the identification of how many factors are needed to describe personality, and what these factors might be called (Costa & McCrae 1992a; [29] and [30]; Tupes & Christal 1992; Zuckerman 1992; [121] and [122]. While these omnibus factors of …