Which of the following measures would be helpful in interpreting the relationship of a particular score to the distribution?
a. Frequency
b. Mean
c. Standard deviation
d. Variance
ANS: C
The standard deviation indicates the average deviation of a score from the mean in that particular sample.
The frequency tells how many times a score occurs in the distribution, not where it falls. The standard deviation indicates the average deviation of a score from the mean in that particular sample.
The mean is simply the average of the scores and would not indicate a relationship to the distribution of scores. The standard deviation indicates the average deviation of a score from the mean in that particular sample.
Variance is a calculated value and has no absolute value. The standard deviation indicates the average deviation of a score from the mean in that particular sample.
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