About a quarter of the world trade goes through which waterway in southeast asia

With an american government question

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.

Marcy tests a solution with a strip of blue litmus paper. the paper turns red. the solution is acidic basic neutral