Traits are descriptions of what people

Using the fact that measures of the personality trait of thrill-seeking are related to accident proneness in order to select safe workers is an example of which approach to safety?

a) ergonomics b) personnel training c) personnel selection d) engineering anthropometry

Marcus wears himself out trying to out-compete his older brother, who is a talented athlete. Marcus's behavior is best understood as an example of:

a. sibling rivalry b. imprinting c. synchrony d. the discrepancy hypothesis