Frito-lays manufacturing plant is in what city and state

What did the 13th , 14th 15th, and 19th amendments do?

Apsychologist has developed a series of personality inventories and wants to determine if they are valid. one of the scales measures perfectionism, so he asks a colleague for advice on how to establish the validity of this scale. the colleague tells him that if he were to find a sample of people with personality disorder, these people would obtain high scores on a scale that measures perfectionism.

The principle of checks and balances is based on the notion that