How does the 1920s and 1930s relate to contemporary america?

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.

Why have the aztec ruins in mexico city not been dug up?

Which conflict is often referred to as the first "televised war"? a) gulf war b) korean war c) vietnam war d) world war ii