This person was among those who pioneered psychological measurement. Among other contributions, he was possibly the first to popularize the notion that the heritability of psychological traits could be assessed by looking at identical and fraternal twins.

Francis Galton

Explanation:

Sir Francis Galton had been an English researcher, sociologist, geologist, eugenicist, as well as climatologist. He is renowned for his groundbreaking general intelligence work and the implementation of connection and induction mathematical principles. He's also named the "eugenics dad". One of the subjects which was probably best known about Francis Galton were his knowledge research. He claimed that certain facets of human behaviour could be evaluated objectively like intellect.                  

answer; earthquake;