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Papers by Philip Vernon
Personality and Individual Differences, Apr 1, 2012
Twin research, Feb 1, 2004
Personality and Individual Differences, 1998
Personality and Individual Differences, Oct 1, 2017
Personality and Individual Differences, Jun 1, 2013
Personality and Individual Differences, Dec 1, 2015
Twin Research and Human Genetics, Feb 1, 2008
Personality and Individual Differences, Aug 1, 1996
Journal of Individual Differences, 2009
Developmental Neuropsychology, 1998
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Acta Psychiatrica Scandinavica, Dec 1, 1996
Personality and Individual Differences, Apr 1, 2012
American Journal of Psychiatry, Oct 1, 2002
Twin Research and Human Genetics, Jun 1, 2011
Personality and Individual Differences, Apr 1, 2008
Twin Research and Human Genetics, 2008
One thousand and seventy three pairs of adult monozygotic (MZ) twins and 895 pairs of same sex ad... more One thousand and seventy three pairs of adult monozygotic (MZ) twins and 895 pairs of same sex adult dizygotic (DZ) twins from the United Kingdom (UK) completed the Humor Styles Questionnaire: a 32-item measure which assesses two positive and two negative styles of humor. MZ correlations were approximately twice as large as DZ correlations for all four humor styles, and univariate behavioral genetic model fitting indicated that individual differences in all of them can be accounted for entirely by genetic and nonshared environmental factors, with heritabilities ranging from .34 to .49. These results, while perhaps not surprising, are somewhat at odds with a previous study that we conducted in North America (Vernon et al., in press) in which genetic factors contributed significantly to individual differences in the two positive humor styles, but contributed far less to the two negative styles, variance in which was instead largely due to shared and nonshared environmental factors. We...
Twin Research and Human Genetics, 2012
The mothers of 603 pairs of 3- to 13-year-old twins in Korea completed the Emotionality, Activity... more The mothers of 603 pairs of 3- to 13-year-old twins in Korea completed the Emotionality, Activity, Sociability (EAS) Temperament Survey and the Strengths and Difficulties Questionnaire in reference to their twins. Principal factor analysis of the seven scales comprising these measures yielded a general factor on which all the scales had moderate to large loadings. Univariate behavioral genetic analyses showed that individual differences on this general factor could best be accounted for by additive genetic and non-shared environmental effects, with a heritability of 53%. The results strengthen the construct validity of the general factor of personality (GFP) by extracting this higher-order dimension from disparate measures, and have implications regarding social desirability criticisms applied to the GFP theory.
Psychiatry Research, 1997
Psychiatry Research, 1998
Personality and Individual Differences, Apr 1, 2012
Twin research, Feb 1, 2004
Personality and Individual Differences, 1998
Personality and Individual Differences, Oct 1, 2017
Personality and Individual Differences, Jun 1, 2013
Personality and Individual Differences, Dec 1, 2015
Twin Research and Human Genetics, Feb 1, 2008
Personality and Individual Differences, Aug 1, 1996
Journal of Individual Differences, 2009
Developmental Neuropsychology, 1998
RefDoc Bienvenue - Welcome. Refdoc est un service / is powered by. ...
Acta Psychiatrica Scandinavica, Dec 1, 1996
Personality and Individual Differences, Apr 1, 2012
American Journal of Psychiatry, Oct 1, 2002
Twin Research and Human Genetics, Jun 1, 2011
Personality and Individual Differences, Apr 1, 2008
Twin Research and Human Genetics, 2008
One thousand and seventy three pairs of adult monozygotic (MZ) twins and 895 pairs of same sex ad... more One thousand and seventy three pairs of adult monozygotic (MZ) twins and 895 pairs of same sex adult dizygotic (DZ) twins from the United Kingdom (UK) completed the Humor Styles Questionnaire: a 32-item measure which assesses two positive and two negative styles of humor. MZ correlations were approximately twice as large as DZ correlations for all four humor styles, and univariate behavioral genetic model fitting indicated that individual differences in all of them can be accounted for entirely by genetic and nonshared environmental factors, with heritabilities ranging from .34 to .49. These results, while perhaps not surprising, are somewhat at odds with a previous study that we conducted in North America (Vernon et al., in press) in which genetic factors contributed significantly to individual differences in the two positive humor styles, but contributed far less to the two negative styles, variance in which was instead largely due to shared and nonshared environmental factors. We...
Twin Research and Human Genetics, 2012
The mothers of 603 pairs of 3- to 13-year-old twins in Korea completed the Emotionality, Activity... more The mothers of 603 pairs of 3- to 13-year-old twins in Korea completed the Emotionality, Activity, Sociability (EAS) Temperament Survey and the Strengths and Difficulties Questionnaire in reference to their twins. Principal factor analysis of the seven scales comprising these measures yielded a general factor on which all the scales had moderate to large loadings. Univariate behavioral genetic analyses showed that individual differences on this general factor could best be accounted for by additive genetic and non-shared environmental effects, with a heritability of 53%. The results strengthen the construct validity of the general factor of personality (GFP) by extracting this higher-order dimension from disparate measures, and have implications regarding social desirability criticisms applied to the GFP theory.
Psychiatry Research, 1997
Psychiatry Research, 1998