A parent offers her child a toy every time he cleans his room. In this example, offering a toy represents which of the following?

If you are presented with two cages of rats (in which each cage contains both males and females in equal numbers), and the rats in one cage seem much more aggressive and active, you might hypothesize that the rats in the cage were

A) postnatally exposed to serotonin. B) deprived of sleep. C) fed a high-fat diet. D) prenatally exposed to extra estrogen. E) prenatally exposed to extra androgen.

If a personality measure has discriminant validity, it does not measure characteristics it was not intended to measure

Indicate whether the statement is true or false