Emma’s use of good x does not affect anyone else’s use of good x. neither emma nor anyone else can be prevented from using the good. good x is an example of the type of good that belongs in?

In which research method does a researcher change the value of one variable to determine how the change affects another variable? a. experiment b. observational research c. survey d. case study

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.

6) why do you think the battle of concord was important of the patriot soldiers?