The correct answer should be the trait theory
The great man theory is based on the opinion that there were throughout history great men with traits that enabled them to affect the course of history. These traits are responsible for it and without it they wouldn't affect it.
Answer:
J Kagan
Explanation:
According to Kagan, :
temperament refers to stable behavioral and emotional reactions that appear early and are influenced in part by genetic constitution.
—Thus as Kagan's developmental psychologist hypothesis implies, a temperament of society refers to consistent patterns in behavior that have a biological basis, relatively independent of ambient factors like learning, systems of established values , context, and other preexisting elements.
He studied babies in Guatemala, and after taking in consideration cultural , and biological factors he argues:
The characteristics mentioned can influence later the behavior of the infants depending on how they engage with environment, but Kagan thinks that still a stable behavior based only in one cause is difficult since environment is always changing , and genes also are changing in response to these dynamics.