The advantage of using T-scores and standard scores is

The advantage of using T-scores and standard scores is
 
  a. those scores provide a common form of reference to everyone using them.
  b. only negative numbers are used.
  c. the mean is always 10.
  d. scores of 1 and +1 are equal distances from the mean.

Question 2

Abscissa is to _______ as ordinate is to _______.
 
  a. density; frequency
  b. frequency; density
  c. horizontal; vertical
  d. vertical; horizontal

Question 3

A test score of 84 was transformed into a standard score of 1.5. If the standard deviation of test scores was 4, what is the mean of the test scores?
 
  a. 78
  b. 80
  c. 90
  d. 88