Personality and health: A twin study to examine possible mediatorsAbstract. It is well-known that health behavior (e.g., physical activity, eating habits, non-smoking) contributes to health and well-being. However, the majority of the population in ...
Among the criteria for a personality paradigm the following three are the most crucial: biological basis (e. g., genetic contribution to the phenotypic variance), universality (existence of traits in different cultures) and reality (possibility to measure ...
The relationship between self-report abilities and personality was examined at both the phenotypic (zero-order) level as well as at the genetic and environmental levels. Twins and siblings (N = 516) completed self-report ability and personality ...
A recent study reported evidence that happiness is contagious, spread through social networks (Fowler & Christakis, 2008). However, past research with twins (e.g., Lykken & Tellegen, 1996) concluded that the shared environment has little to no influence ...