Making a scatter diagram before figuring the correlation coefficient is a good idea because
A) there is no point in figuring the correlation if a clear line is formed on the graph.
B) there are different procedures depending on whether there appears to be a positive or a negative correlation.
C) it allows estimation of the degree and direction of correlation to provide a check on eventual figuring.
D) a correlation coefficient should be figured only if a clear curvilinear correlation is seen.
C
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The DSM-5 includes approximately __________ different diagnostic categories
a) 350 b) 500 c) 100 d) 50
Susan has withdrawn from social contact with others. She spends most of her time alone in her bedroom. She has stopped going to her job and no longer talks to her family on the phone. Additionally, Susan neglects her personal hygiene and rarely bathes, brushes her teeth, or changes clothes. Susan's behavior BEST illustrates which symptom of schizophrenia?
a. deterioration of adaptive behavior b. hallucinations c. disturbed emotions d. irrational thought