Which leaders policies included glasnot and perestroika

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.

People of french origin make up about of the canadian population. 23 percent 50 percent 1 percent 76 percent

What kind of geography deals with people and how they affect the world ?