Do you think media is one of many causes of the stereotypes?

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.

Which situation is most likely to show a constant rate of change?

Why were so many distinctive cultures able to develop over time in asia?