A z-score of zero always means a. the raw score does not ...

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A z-score of zero always means
 
  a. the raw score does not exist.
  b. the raw score exists, but is negligible.
  c. the raw score almost never occurs.
  d. the raw score is equal to the mean.

Question 2

To evaluate a person for possible brain damage, a neuropsychologist gives the person a visual memory test and a reading test. To compare the person's performance across these two tests, what should the neuropsychologist do?
 
  a. Graph the raw score distribution for each test on the same graph.
  b. Calculate a z-score for each test.
  c. Calculate z-scores for the sample means.
  d. Find the simple frequency of the person's raw score for each test.

[Chou]

Answer to Question 1

d

Answer to Question 2

b

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Excellent

[helenmarkerine]

Thanks for the timely response, appreciate it