Your genes code for all your traits. Some genes are dominant and expressed if you receive a copy from one parent. Others are recessive and only apparent if you receive a copy from both parents. Genes ...

We study the efficiency of administering different subsets of a large collection of items in a sample survey to different people to estimate the distribution of several correlated traits. The designs ...

Psychologists have been studying personality for a very long time. Thinking about personality as a collection of traits goes all the way back to ancient Greece and Rome, and trait theorists such as ...

Behavioral geneticists study the genetic and environmental underpinnings of psychological and many other human traits. With a decades-long history and well-established research methods, the field has ...