Can someone help me on this?

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.

What is the name of the large desert that runs across north africa

Within the hierarchy of the federal bureaucracy, the cabinet is higher than independent agencies. higher than the vice president. lower than executive departments. lower than administrators and staff.